landform that separates vietnam from cambodia and laos
Geography of Cambodia Cambodia's low mountain ranges - representing the walls of the bowl - remain as the result of only rather recent substantial infrastructural development and economic exploitation - in particular in remote areas - formidably forested.[28] The country is fringed to the north by the Dangrek Mountains plateau, bordering Thailand and Laos, to the north-east by the Annamite Range, in the south-west by the Cardamom Mountains and in the South by the Elephant Mountains. Highlands to the north-east and to the east merge into the Central Highlands and the Mekong Delta lowlands of Vietnam.[29][30]
Korea Korea is a region in East Asia; since 1948 it has been divided between two distinct sovereign states: North Korea and South Korea. Located on the Korean Peninsula, Korea is bordered by China to the northwest, Russia to the northeast, and neighbours Japan to the east by the Korea Strait and the Sea of Japan (East Sea).
Asia-Pacific On the whole there appears to be no clear cut definition of "Asia Pacific" and the regions included change as per the context.
Battle of Dien Bien Phu The Battle of Dien Bien Phu (French: Bataille de Diên Biên Phu; Vietnamese: Chiến dịch Điện Biên Phủ, IPA: [ɗîəˀn ɓīən fû]) was the climactic confrontation of the First Indochina War between the French Union's French Far East Expeditionary Corps and Viet Minh communist-nationalist revolutionaries. It was, from the French view before the event, a set piece battle to draw out the Vietnamese and destroy them with superior firepower. The battle occurred between March and May 1954 and culminated in a comprehensive French defeat that influenced negotiations underway at Geneva among several nations over the future of Indochina.