<SUBMISSION>
<ACCESSION-NUMBER>0001104659-07-084440
<TYPE>8-K
<PUBLIC-DOCUMENT-COUNT>1
<PERIOD>20071120
<ITEMS>5.02
<FILING-DATE>20071120
<DATE-OF-FILING-DATE-CHANGE>20071120
<FILER>
<COMPANY-DATA>
<CONFORMED-NAME>KRATOS DEFENSE & SECURITY SOLUTIONS, INC.
<CIK>0001069258
<ASSIGNED-SIC>4899
<IRS-NUMBER>133818604
<STATE-OF-INCORPORATION>DE
<FISCAL-YEAR-END>1231
</COMPANY-DATA>
<FILING-VALUES>
<FORM-TYPE>8-K
<ACT>34
<FILE-NUMBER>000-27231
<FILM-NUMBER>071260379
</FILING-VALUES>
<BUSINESS-ADDRESS>
<STREET1>4810 EASTGATE MALL
<STREET2>.
<CITY>SAN DIEGO
<STATE>CA
<ZIP>92121
<PHONE>858-812-7300
</BUSINESS-ADDRESS>
<MAIL-ADDRESS>
<STREET1>4810 EASTGATE MALL
<STREET2>.
<CITY>SAN DIEGO
<STATE>CA
<ZIP>92121
</MAIL-ADDRESS>
<FORMER-COMPANY>
<FORMER-CONFORMED-NAME>WIRELESS FACILITIES INC
<DATE-CHANGED>19990817
</FORMER-COMPANY>
</FILER>
<DOCUMENT>
<TYPE>8-K
<SEQUENCE>1
<FILENAME>a07-29870_18k.htm
<DESCRIPTION>8-K
<TEXT>
<html>

<head>





</head>

<body lang="EN-US">

<div style="font-family:Times New Roman;">

<div style="border:none;border-top:double windowtext 6.0pt;padding:0in 0in 0in 0in;">

<p align="center" style="border:none;color:windowtext;margin:0in 0in .0001pt;padding:0in;text-align:center;"><b><font size="3" face="Times New Roman" style="font-size:12.0pt;font-weight:bold;">&nbsp;</font></b></p>

</div>

<p align="center" style="color:windowtext;margin:0in 0in .0001pt;text-align:center;"><b><font size="5" face="Times New Roman" style="font-size:18.0pt;font-weight:bold;">UNITED STATES<br>
SECURITIES AND EXCHANGE COMMISSION</font></b></p>

<p align="center" style="color:windowtext;margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p align="center" style="color:windowtext;margin:0in 0in .0001pt;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">Washington, D.C.&#160; 20549</font></b></p>

<p align="center" style="color:windowtext;margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p align="center" style="color:windowtext;margin:0in 0in .0001pt;text-align:center;"><b><font size="5" face="Times New Roman" style="font-size:18.0pt;font-weight:bold;">FORM 8-K</font></b></p>

<p align="center" style="color:windowtext;margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p align="center" style="color:windowtext;margin:0in 0in .0001pt;text-align:center;"><b><font size="3" face="Times New Roman" style="font-size:12.0pt;font-weight:bold;">CURRENT REPORT</font></b></p>

<p align="center" style="color:windowtext;margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p align="center" style="color:windowtext;margin:0in 0in .0001pt;text-align:center;"><b><font size="3" face="Times New Roman" style="font-size:12.0pt;font-weight:bold;">Pursuant to Section&nbsp;13 or 15(d) of<br>
the Securities Exchange Act of 1934</font></b></p>

<p align="center" style="color:windowtext;margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p align="center" style="color:windowtext;margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p align="center" style="color:windowtext;margin:0in 0in .0001pt;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">November 20, 2007</font></b></p>

<p align="center" style="color:windowtext;margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Date of Report (Date of earliest event
reported)</font></p>

<p align="center" style="color:windowtext;margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p align="center" style="color:windowtext;margin:0in 0in .0001pt;text-align:center;"><b><font size="5" face="Times New Roman" style="font-size:18.0pt;font-weight:bold;">Kratos Defense &amp; Security Solutions, Inc.</font></b></p>

<p align="center" style="color:windowtext;margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(Exact name of registrant as specified in its charter)</font></p>

<p align="center" style="color:windowtext;margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<div align="center">

<table border="0" cellspacing="0" cellpadding="0" width="100%" style="border-collapse:collapse;width:100.0%;">
 <tr>
  <td width="100%" colspan="3" valign="top" style="padding:0in .7pt 0in .7pt;width:100.0%;">
  <p align="center" style="color:windowtext;margin:0in 0in .0001pt;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">Delaware</font></b></p>
  </td>
 </tr>
 <tr>
  <td width="100%" colspan="3" valign="top" style="padding:0in .7pt 0in .7pt;width:100.0%;">
  <p align="center" style="color:windowtext;margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(State or other
  jurisdiction of incorporation)</font></p>
  </td>
 </tr>
 <tr>
  <td width="100%" colspan="3" valign="top" style="padding:0in .7pt 0in .7pt;width:100.0%;">
  <p align="center" style="color:windowtext;margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  </td>
 </tr>
 <tr>
  <td width="45%" valign="top" style="padding:0in .7pt 0in .7pt;width:45.0%;">
  <p align="center" style="color:windowtext;margin:0in 0in .0001pt;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">0-27231</font></b></p>
  </td>
  <td width="10%" valign="bottom" style="padding:0in .7pt 0in .7pt;width:10.0%;">
  <p style="color:windowtext;margin:0in 0in .0001pt;"><b><font size="2" face="Times New Roman" style="font-size:1.0pt;font-weight:bold;">&nbsp;</font></b></p>
  </td>
  <td width="45%" valign="top" style="padding:0in .7pt 0in .7pt;width:45.0%;">
  <p align="center" style="color:windowtext;margin:0in 0in .0001pt;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">13-3818604</font></b></p>
  </td>
 </tr>
 <tr>
  <td width="45%" valign="top" style="padding:0in .7pt 0in .7pt;width:45.0%;">
  <p align="center" style="color:windowtext;margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(Commission File Number)</font></p>
  </td>
  <td width="10%" valign="bottom" style="padding:0in .7pt 0in .7pt;width:10.0%;">
  <p style="color:windowtext;margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
  </td>
  <td width="45%" valign="top" style="padding:0in .7pt 0in .7pt;width:45.0%;">
  <p align="center" style="color:windowtext;margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(IRS Employer
  Identification No.)</font></p>
  </td>
 </tr>
 <tr>
  <td width="45%" valign="top" style="padding:0in .7pt 0in .7pt;width:45.0%;">
  <p align="center" style="color:windowtext;margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  </td>
  <td width="10%" valign="bottom" style="padding:0in .7pt 0in .7pt;width:10.0%;">
  <p style="color:windowtext;margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  </td>
  <td width="45%" valign="top" style="padding:0in .7pt 0in .7pt;width:45.0%;">
  <p align="center" style="color:windowtext;margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  </td>
 </tr>
 <tr>
  <td width="45%" valign="top" style="padding:0in .7pt 0in .7pt;width:45.0%;">
  <p align="center" style="color:windowtext;margin:0in 0in .0001pt;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">4810 Eastgate Mall, San Diego,
  CA</font></b></p>
  </td>
  <td width="10%" valign="bottom" style="padding:0in .7pt 0in .7pt;width:10.0%;">
  <p style="color:windowtext;margin:0in 0in .0001pt;"><b><font size="2" face="Times New Roman" style="font-size:1.0pt;font-weight:bold;">&nbsp;</font></b></p>
  </td>
  <td width="45%" valign="top" style="padding:0in .7pt 0in .7pt;width:45.0%;">
  <p align="center" style="color:windowtext;margin:0in 0in .0001pt;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">92121</font></b></p>
  </td>
 </tr>
 <tr>
  <td width="45%" valign="top" style="padding:0in .7pt 0in .7pt;width:45.0%;">
  <p align="center" style="color:windowtext;margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(address of principal
  executive offices)</font></p>
  </td>
  <td width="10%" valign="bottom" style="padding:0in .7pt 0in .7pt;width:10.0%;">
  <p style="color:windowtext;margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
  </td>
  <td width="45%" valign="top" style="padding:0in .7pt 0in .7pt;width:45.0%;">
  <p align="center" style="color:windowtext;margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(Zip Code)</font></p>
  </td>
 </tr>
 <tr>
  <td width="100%" colspan="3" valign="top" style="padding:0in .7pt 0in .7pt;width:100.0%;">
  <p align="center" style="color:windowtext;margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  </td>
 </tr>
 <tr>
  <td width="100%" colspan="3" valign="top" style="padding:0in .7pt 0in .7pt;width:100.0%;">
  <p align="center" style="color:windowtext;margin:0in 0in .0001pt;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">(858) 812-7300</font></b></p>
  </td>
 </tr>
 <tr>
  <td width="100%" colspan="3" valign="top" style="padding:0in .7pt 0in .7pt;width:100.0%;">
  <p align="center" style="color:windowtext;margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(Registrant&#146;s telephone
  number, including area code)</font></p>
  </td>
 </tr>
</table>

</div>

<p align="center" style="color:windowtext;margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p style="color:windowtext;margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Check
the appropriate box below if the Form 8-K filing is intended to simultaneously
satisfy the filing obligation of the registrant under any of the following
provisions:</font></p>

<p style="color:windowtext;margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p style="color:windowtext;margin:0in 0in .0001pt .25in;text-indent:-.25in;"><font size="2" face="Wingdings" style="font-size:10.0pt;">o</font><font size="2" style="font-size:10.0pt;">Written communications pursuant to Rule 425 under
the Securities Act (17 CFR 230.425)</font></p>

<p style="color:windowtext;margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p style="color:windowtext;margin:0in 0in .0001pt .25in;text-indent:-.25in;"><font size="2" face="Wingdings" style="font-size:10.0pt;">o</font><font size="2" style="font-size:10.0pt;">Soliciting material pursuant to Rule 14a-12 under
the Exchange Act (17 CFR 240.14a-12)</font></p>

<p style="color:windowtext;margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p style="color:windowtext;margin:0in 0in .0001pt .25in;text-indent:-.25in;"><font size="2" face="Wingdings" style="font-size:10.0pt;">o</font><font size="2" style="font-size:10.0pt;">Pre-commencement communications pursuant to Rule
14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))</font></p>

<p style="color:windowtext;margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p style="color:windowtext;margin:0in 0in .0001pt .25in;text-indent:-.25in;"><font size="2" face="Wingdings" style="font-size:10.0pt;">o</font><font size="2" style="font-size:10.0pt;">Pre-commencement communications pursuant to Rule
13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))</font></p>

<div style="border:none;border-bottom:double windowtext 6.0pt;padding:0in 0in 0in 0in;">

<p align="center" style="border:none;color:windowtext;margin:0in 0in .0001pt;padding:0in;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

</div>

<div style="color:windowtext;margin:0in 0in .0001pt;"><hr size="3" width="100%" noshade color="#010101" align="left"></div>

<p align="center" style="color:windowtext;margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

</div>
<!-- SEQ.=1,FOLIO='',FILE='C:\JMS\kkelley\07-29870-1\task2537924\29870-1-ba.htm',USER='kkelley',CD='Nov 20 15:02 2007' -->



<br clear="all" style="page-break-before:always;">
<div>

<p style="color:windowtext;margin:0in 0in .0001pt;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">Item 5.02.&#160; Departure of
Directors or Principal Officers; Election of Directors; Appointment of
Principal Officers</font></b></p>

<p style="color:windowtext;margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p style="color:windowtext;margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">On
November 14, 2007, James Edwards, the Senior Vice President, General Counsel
and Secretary of Kratos Defense &amp; Security Solutions, Inc. (the &#147;Company&#148;),
left the Company as an officer and employee, effective as of November 14,
2007.&#160; He will continue as an outside
attorney to the Company.</font></p>

<p align="center" style="color:windowtext;margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p align="center" style="color:windowtext;margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">2</font></p>

<div style="color:windowtext;margin:0in 0in .0001pt;"><hr size="3" width="100%" noshade color="#010101" align="left"></div>

<p align="center" style="color:windowtext;margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

</div>
<!-- SEQ.=1,FOLIO='2',FILE='C:\JMS\kkelley\07-29870-1\task2537924\29870-1-fc.htm',USER='kkelley',CD='Nov 20 15:05 2007' -->



<br clear="all" style="page-break-before:always;">
<div>

<p align="center" style="color:windowtext;margin:0in 0in .0001pt;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">SIGNATURES</font></b></p>

<p align="center" style="color:windowtext;margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p align="center" style="color:windowtext;margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p style="color:windowtext;line-height:normal;margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Pursuant to the requirements of the Securities
Exchange Act of 1934, the registrant has duly caused this report to be signed
on its behalf by the undersigned hereunto duly authorized.</font></p>

<p style="color:windowtext;line-height:normal;margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p style="color:windowtext;line-height:normal;margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<table border="0" cellspacing="0" cellpadding="0" width="100%" style="border-collapse:collapse;width:100.0%;">
 <tr>
  <td width="46%" valign="top" style="padding:0in .7pt 0in .7pt;width:46.06%;">
  <p style="color:windowtext;margin:0in 0in .0001pt;"><b><font size="2" face="Times New Roman" style="font-size:1.0pt;font-weight:bold;">&nbsp;</font></b></p>
  </td>
  <td width="53%" colspan="3" valign="top" style="padding:0in .7pt 0in .7pt;width:53.94%;">
  <p style="color:windowtext;margin:0in 0in .0001pt;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">Kratos Defense &amp; Security Solutions, Inc.</font></b></p>
  </td>
 </tr>
 <tr>
  <td width="100%" colspan="4" valign="top" style="padding:0in .7pt 0in .7pt;width:100.0%;">
  <p style="color:windowtext;margin:0in 0in .0001pt;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">&nbsp;</font></b></p>
  </td>
 </tr>
 <tr>
  <td width="52%" colspan="2" valign="top" style="padding:0in .7pt 0in .7pt;width:52.62%;">
  <p style="color:windowtext;margin:0in 0in .0001pt;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">&nbsp;</font></b></p>
  </td>
  <td width="3%" valign="top" style="padding:0in .7pt 0in .7pt;width:3.94%;">
  <p style="color:windowtext;margin:0in 0in .0001pt;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">&nbsp;</font></b></p>
  </td>
  <td width="43%" valign="top" style="padding:0in .7pt 0in .7pt;width:43.44%;">
  <p style="color:windowtext;margin:0in 0in .0001pt;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">&nbsp;</font></b></p>
  </td>
 </tr>
 <tr>
  <td width="52%" colspan="2" valign="top" style="padding:0in .7pt 0in .7pt;width:52.62%;">
  <p style="color:windowtext;margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Date:&nbsp;November 20, 2007</font></p>
  </td>
  <td width="3%" valign="top" style="padding:0in .7pt 0in .7pt;width:3.94%;">
  <p style="color:windowtext;margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">By:</font></p>
  </td>
  <td width="43%" valign="top" style="border:none;border-bottom:solid windowtext 1.0pt;padding:0in .7pt 0in .7pt;width:43.44%;">
  <p style="color:windowtext;margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">/s/ Deanna H. Lund</font></p>
  </td>
 </tr>
 <tr>
  <td width="52%" colspan="2" valign="top" style="padding:0in .7pt 0in .7pt;width:52.62%;">
  <p style="color:windowtext;margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
  </td>
  <td width="47%" colspan="2" valign="top" style="padding:0in .7pt 0in .7pt;width:47.38%;">
  <p style="color:windowtext;margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Deanna H. Lund</font></p>
  </td>
 </tr>
 <tr>
  <td width="52%" colspan="2" valign="top" style="padding:0in .7pt 0in .7pt;width:52.62%;">
  <p style="color:windowtext;margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
  </td>
  <td width="47%" colspan="2" valign="top" style="padding:0in .7pt 0in .7pt;width:47.38%;">
  <p style="color:windowtext;margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Senior Vice President, Chief Financial Officer</font></p>
  </td>
 </tr>
 <tr height="0">
  <td width="345" style="border:none;"></td>
  <td width="49" style="border:none;"></td>
  <td width="29" style="border:none;"></td>
  <td width="325" style="border:none;"></td>
 </tr>
</table>

<p align="center" style="color:windowtext;margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p align="center" style="color:windowtext;margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">3</font></p>

<div style="color:windowtext;margin:0in 0in .0001pt;"><hr size="3" width="100%" noshade color="#010101" align="left"></div>

<p align="center" style="color:windowtext;margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

</div>
<!-- SEQ.=1,FOLIO='3',FILE='C:\JMS\kkelley\07-29870-1\task2537924\29870-1-jc.htm',USER='kkelley',CD='Nov 20 15:10 2007' -->


</body>

</html>
</TEXT>
</DOCUMENT>
</SUBMISSION>
