why are we doing this?

That is a 1000000 billions question my friend.

It reminds me of gale's bomb in mockingjay.

Yup, that pretty much sums up our wars.

h

Step 1: drop bombs.
Step 2: drop supplies.
Step 3: drop bombs on a delay (so when they come looking for supplies...).
Repeat as necessary (or the UN gets involved, whichever comes first).