![Vientiane's "Arc de Triomphe"](http://photos.travelblog.net/372085/982971/s/9420307-vientiane-39-s-quot-arc-de-triomphe-quot-0.jpg "Vientiane's "Arc de Triomphe"")
Laos was under the control of Siam (Thailand) from the late 18th century until the late 19th century when it became part of French Indochina. The Franco-Siamese Treaty of 1907 defined the current Lao border with Thailand. In 1975, the Communist Pathe...more history