the 630th air mobility support squadron was one of air mobility command's primary pacific hubs for air traffic. it was amc's senior activity at yokota and it represented other amc organizations in the pacific including operating locations at fukuoka airport and misawa air base, japan. the 630th supported all strategic/commercial airlift throughout the pacific. the air transportation function operated the primary u.s. aerial port in japan, providing support to u. s. military passengers and cargo arriving or departing from yokota.