For each component, Grenada Army Base has 6000/3=<<6000/3=2000>>2000 each of guns, war tractors, and soldier uniforms.
Rockefeller Army Base has 3000+2*2000= <<3000+2*2000=7000>>7000 guns
Rockefeller Army Base has 3*2000-400=<<3*2000-400=5600>>5600 war tractors.
Rockefeller Army Base has 30*2000=<<30*2000=60000>>60000 soldier uniforms.
The total war supplies Rockefeller Army Base has reserved are 60000+5600+7000=<<60000+5600+7000=72600>>72600 war supplies for its national protection.
#### 72600