Laotian political movement against French colonial control, founded in 1945. The departure of the Japanese from Laos in 1945 left the Laotian ruling elite divided over the issue of the restoration of French control. The king welcomed the French return, but Prince Phetsarath, the viceroy, and his brothers, Souvanna Phouma and Souphanouvong, were prominent in the noncommunist Lao Issara, which demanded full independence. The granting of limited independence within the French union in 1949 split the Lao Issara, one faction becoming the left-oriented Pathet Lao.