Flag (stylized in all caps) is a 13-episode Japanese mecha-genre anime television series created and directed by veteran director Ryōsuke Takahashi.

Stylistically, the series makes use of a still and video cameraman POV, as well as "web cam" images, to create a documentary-like narrative, despite being an animated drama.

Saeko Shirasu is a 25-year-old war front-line photo-journalist who became a celebrity after taking a picture of civilians raising a makeshift UN flag in war-torn Uddiyana.

The UN peacekeepers decide to covertly send in a SDC (pronounced as "Seedac"—Special Development Command) unit to retrieve the flag.

Among the SDC unit's equipment is the HAVWC (High Agility Versatile Weapon Carrier—pronounced "havoc") mecha armored vehicle.