from the 1950s, united states fleet activities yokosuka has been home port for the united states seventh fleet, and played a critical support role in the korean war and the vietnam war. yokosuka was the site of many anti-war protests during the late 1960s and 1970s. the nuclear-powered uss "george washington", formerly based at yokosuka, was the first u.s. nuclear-powered ship that had been permanently based in japan. the japan maritime self-defense force also operates a military port next to the american base, as well as numerous training facilities at scattered locations around the city. for those reasons, there are a few hundred americans and a thousand filipinos in yokosuka.