Tanks have always been sitting ducks when being attacked by aircraft. The situation got worse after the invention of anti-tank missiles which could be fired from both ground attack aircraft such as A-10, Su-25, or from helicopters such as AH-64. In most cases, even the most advanced Main Battle Tanks could do absolutely nothing against an air attack besides trying to hide and lay down smoke screen. Why nobody is trying to arm the tanks to deal with the threat from the air? I know some tanks can fire small missiles from their main guns, and these missiles are said to be able to bring down choppers, but have you ever heard of a single case of a chopper being downed by a tank? I haven't. Tanks don't even have the radar to track and lock onto an aircraft, let along attack it accurately. I mean, how hard is it to install something similar to what's on a mobile AA onto a tank? A Gatling guns, and a few real AA missiles even just short ranged missiles? So tanks won't be sitting ducks but instead can be a threat to low flying aircraft especially choppers? Adding a data link to allow tanks to share the readings from radars nearby could be helpful too.