a river system
The Mekong Delta is a region in southwestern Vietnam. Hanoi is the capital of Vietnam.
The Mekong River Delta is located in the southeastern region of Vietnam. This is where the Mekong River empties into the sea.
The former SOUTH Vietnam consisted of the Central Highlands; Mekong Delta; and the Coastal Regions.
Generally speaking, Vietnam is a mountainous and hilly country. However, in the Mekong River Delta region (near to and south of Saigon) and, to a lesser extent, in the Red River Delta region (near to and southwest of Hanoi), there are relatively flat and low-elevation regions. This is the exception, not the rule.
A Mekong food chain is a food chain of the Mekong region
Most of it seemed fertile, however, most will probably say the Mekong Delta. But that region is extremely wet (seemingly flooded).
The Ca Mau Province, which is located in the Mekong Delta region, is the southernmost part of Vietnam's inland territory. Its capital city is Ca Mau.
It to do with geology in the region
II Corps was the largest of the four Corps in South Vietnam; also called MRs (Military Region I, II, III, IV). MR2 covered the Central Highlands. IV Corps was in the Mekong Delta and I Corps was at the Z. Z=DMZ
Vietnam is located in a region known as SEA (Southeast Asia).
France was the primary European nation involved with Indo-China prior to the US's entry into Vietnam.
Vietnam war starts due to the abusive US exterior politics. Vietnam regime turned the country to the communism, spoiling all the US economic and political interests in the region. Therefore defending South Vietnam against the "tyranny of communism" US invaded North Vietnam.