The capabilities in this announcement include:
RIM-7 missiles and support for air defense;
Stinger missiles;
Ammunition for High Mobility Artillery Rocket Systems (HIMARS);
155mm and 105mm artillery ammunition;
Tube-launched, Optically tracked, Wire-guided (TOW) missiles;
Javelin and AT-4 anti-armor systems;
Bradley Infantry Fighting Vehicles;
M113 Armored Personnel Carriers;
Mine Resistant Ambush Protected (MRAP) Vehicles;
Small arms ammunition and grenades;
Patrol boats;
Maritime training equipment;
Demolitions equipment and munitions;
Spare parts, ancillary equipment, services, training, and transportation.
This typically needs congressional approval, or at least notification. Almost impossible to keep this secret and attempting to do so would just look really bad to the public.
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