Pakalitha Mosisili's departure comes after two years of factional squabbles in the Lesotho Congress for Democracy.

BBC: Lesotho's PM Pakalitha Mosisili deserts political party

Lesotho's prime minister, Pakalitha Mosisili, invited the invasion force in to save his government from an apparent coup.

ECONOMIST: Lesotho

After several uncomfortable months, which saw rioting and an army and police mutiny, Pakalitha Mosisili, the prime minister, asked for military help from South Africa, which surrounds the kingdom, and Botswana.

ECONOMIST: Lesotho's election