The KC-767 is a military air tanker that can also function as a strategic transport aircraft. Japan chose the KC-767 in 2001. The competitor is the Airbus A310 MRTT. The signing of the purchase contract was carried out in Tokyo in 2003.
Japan sends military equipment to Ukraine

The Japan Air Self-Defence Force (JASDF) has sent a KC-767 transport aircraft to Poland carrying military equipment, Tuesday (8/3/2022). The planes transported bulletproof vests, helmets, cold-weather suits.