HALO jumps are used to enter hostile territory undetected when threats to both Airmen and aircraft are expected.
Antiaircraft Tank Lets it Rip!
German anti-aircraft tank Gepard. Effective against all airplanes (not stealth), helicopters, missiles, mortar and artillery shells. The Flugabwehrkanonenpanzer Gepard ("anti-aircraft cannon tank Cheetah", better known as the Flakpanzer Gepard) is an autonomous, all-weather-capable German self-propelled anti-aircraft gun (SPAAG). It was developed in the 1960s and fielded in the 1970s, and has been upgraded several times with the latest electronics.