M1 Tank Anti-Personnel features Main Armor Page . The greatest threat to armor on the modern battlefield is from the air.
Attack helicopters can appear out of no where and are hard to hit from the ground.
This US Apache can be seen equipped with Tank busting missiles attached under its weapon mounts. Land based threats from light vehicles like this Humvee that are equipped with anti-armor missiles can wreak havoc on an advancing armor force. Light vehicles, though destroyed easily, are cheap, fast, and numerous. The threat to Heavy Armor like the Leopard, or Abrams from Infantry carried light missiles is minimal.