Overpopulation and land shortages stimulated a Vietnamese expansion south. In 1471, Dai Viet troops led by king Lê Thánh Tông invaded Champa and captured its cash Vijaya. This occasion correctly ended Champa as a robust kingdom, While some scaled-down surviving Cham states lasted for the couple hundreds of years more. https://vi-t-nam29765.mybjjblog.com/việt-nam-an-overview-44268335