6-44. The MEB uses its military police (MP) and other assigned security forces to provide area security around friendly CP facilities and critical sites. The corps or division commander assigns the MEB the mission of developing security plans for bases, base clusters, and designated routes within the support area. These plans address unit, base, and convoy defense against Level I threats. These plans address MEB response force operations directed against Level II threats. Areas previously occupied by enemy forces should be cleared if sustainment assets must transit them and other maneuver forces have not done so.