The FGM-148 Javelin is an anti-tank missile used by the US military. The weapon was first introduced 1996, seeing first action in 2003 where it destroyed multiple Iraqi tanks in the 2003 Invasion of Iraq. The Javelin can be fired in two mode, top attack, where the missile flies up into the air and dives down onto the target, hitting it the weaker top armor. The missile can also used in direct fire mode, to engage enemy positions and buildings, and, to a limited degree, helicopters. The missile has tandem charge to penetrate explosive reactive armor and a "soft launch" system that allows the missile to be fired from inside building with minimal prep, unlike the AT4.