Build another 500 A-10s, another 500 F-15s, another 500 F-16s, and upgrade the avionics on the current inventory of B-52s.
L
BINGO !
I would consider replacing the A-10 with a modernized A-1 Skyraider (air cooled diesel radial engine for fuel compatibility), but the current A-10 is the best at what it does. F-15 and F-16 airframes still have potential, but the oldest airframes in inventory are over 30 years old and suffering from fatigue problems. The B-52s in current inventory need to be replaced as I believe they are the second oldest set of airframes in the Airforce inventory (KC-135 I believe is older). A new design replacement for the big bomb truck for the US Airforce that can do all of the B-52 missions better and more efficiently would be a positive. More efficient means less time in maintenance between missions and less fuel per ton of bombs carried, and possibly less aircrew.
Build another 500 A-10s, another 500 F-15s, another 500 F-16s, and upgrade the avionics on the current inventory of B-52s.
...
Instead of incredibly expensive manned stealth planes that make cronies rich, use cruise missiles and drones for that role.