"Cheaper to leave it" There is no cost for us to remove it . Labor which our Troops and Pilots are being paid regardless during their tour so they can remove the equipment since the war was over. Fuel might be a cost but we waste enough fuel for training , so removing the equipment could be a training exercise so again fuel already paid for. Leaving our best equipment in enemy hands should be a hangable offense, you always blow up the equipment in place if you decide to leave it so the enemy can't use it against you in the future.
You may not like Trump's personally but you have to agree with his common sense and his policy for America if you are a Patriot and believe in our Republic .