The accidental 1929 Bombing of Naco by Irish-American mercenary Patrick Murphy is notable for being the first and only instance where a town in the Continental United States was bombed by aircraft working for a foreign Power. The 1942 Lookout Air Raids, when a Japanese floatplane pilot made two unsuccessful attempts to start forest fires in rural Oregon, and the 1944-45 unmanned Fu-Go Fire balloon attacks, also by the Japanese, are the only other cases of the Continental United States enduring aerial bombing by a foreign power. Such events are exceptionally rare in American history because during 20th century conflicts, most notably World War I and World War II, the continental United States escaped the large-scale aerial bombings that devastated many Asian and European cities.