When you think of the conditions under which armored tanks operate, you know they must need repair sometime, no matter how indestructible they look. But it′s not like you can drop off an M1 Abrams Tank at your local Jiffy Lube. That′s where Annison Army Depot comes in. Damaged by wear and tear and worse, the tanks arrive by train and go through a 30-day routine that cleans and repairs every single piece down to the individual blades of the turbine. Since tanks are vehicles that simply cannot break down, the team that works on them has perfected this process, sending them back on the outgoing train a month later, better than new.