The idea of trucks for sharing recorces is good but if you are recieveing them how are you supposed to accept them? Maybe make a little button that is labelled 'share recources' and pops up and there are 2 sections like this:
1 Person sharing with obvious
2 Type of recource as in fuel manpower or munitions
3 The amount of resources you want to give
It paradrops recources where you want them to but only the person its to and the enemy can pick it up



