The USAF/USN fought their "Air" war over North Vietnam. The US Army/Marines fought in South Vietnam. Covert operators (Special Forces, Seals, Ravens, etc.) fought in Cambodia & Laos.
Jets fought in the skies over North Vietnam (the air war). Land warfare/Riverine warfare took place in South Vietnam.
Manor
Yes it was fought on land
Crusades
Yes, it was fought on muddy land.
land
They fought for and then moved away from land in the Carolinas.
The answer is Water Shed
vietnam covers 127,246 sq mi; 329,566 sq km of land
it was fought over land
It was mainly in Vietnam which when the war began was divided into the Republic of Vietnam (known as RVN or South Vietnam) and the Democratic Republic of Vietnam (known as DRV or North Vietnam). After the war ended (with defacto victory for North Vietnam) both Vietnam's were re-united. That state is now called the Socialist Republic of Vietnam. During the war fighting also spilled over into neighbouring Laos and Cambodia.
Ranchers and Farmers fought over land control.