In the game Tank Defender you have to shoot down the planes with your tank to defend your country. Blow up the nuclear missiles your enemies are firing at you before they hit the ground or, better yet, blow up the enemy planes before they can even drop any missiles. Every now and then, your own planes will fly over to drop supplies and boosters. Don't worry: they're immune to your rockets. Grab the crates to gain extra rockets, shields, bonus points, and more!