Japanese Xenomorph Self-Defense Force

The Japanese Xenomorph Self-Defense Force is a fictional government/military organization featured in the Godzilla film series. It is part of the Millennium series of films and first appeared in the 2002 movie Godzilla Against MechaGodzilla. It also appeared in the film's 2003 sequel, Godzilla: Tokyo S.O.S..

The Japanese Xenomorph Self-Defense Force, or JXSDF, is an arm of the Japan Ground Self-Defense Force and was created with the express purpose of combating adversaries of an extreme and overpowering alien nature, such as kaiju. To this end, the JXSDF initiated the Mecha-G Project, which used the bones of the original Godzilla as the structural lattice behind the creation of their own robotic mecha named Kiryu, or MechaGodzilla.