Japan Self-Defense Force

The Japan Self-Defense Force, abbreviated as the JSDF and commonly known as the SDF, is the main military force of the State of Japan and contains the Ground, Maritime and Air defense forces, and is tasked of protecting the nation against all threats. Due to Article 9, Japan is prohibited to wage war against external countries.

During the onset of the global outbreak, the Self Defense Force was mobilized on day one to several locations, including the Saitama Prefecture as a collective effort to contain the disease, which was regarded as a riot. In Tokyo, the Government and National Diet questioned the ability of the SDF to contain the disorders. As a result, the police was dispatched in the Saitama Prefecture and first encoutered the infected while attempting to carry them inside an ambulance.

The SDF would then activate large scale operations to relieve the city where the main serie is based in, and as of Episode 11 the SDF was still active, and successfully intercepted US ICBMs which were directed to Japan. However, one of the ships that was tasked of destroying the nuke became infested with zombies, therefore the ICBM landed just outside of Japan, interrupting all communications. The SDF activated countermeasures to proceed with operations.