Facing a tight withdrawal deadline and tough terrain, the U.S. military has destroyed more than 170 million pounds worth of vehicles and other military equipment as it rushes to wind down its role in the Afghanistan war by the end of 2014.

The massive disposal effort, which U.S. military officials call unprecedented, has unfolded largely out of sight amid an ongoing debate inside the Pentagon about what to do with the heaps of equipment that won’t be returning home. Military planners have determined that they will not ship back more than $7 billion worth of equipment — about 20 percent of what the U.S. military has in Afghanistan — because it is no longer needed or would be too costly to ship back home.

Just in case you forgot how expensive military occupations are, the value of that abandoned and trashed equipment would make up 14 years worth of what the GOP wants to slash from NASA climate funding.