I believe it did, with South Vietnam, Laos, and Cambodia falling like dominoes, but it was a complicated process and other contibutors may disagree as to how real the domino effect was.
the Vietnam war occur from 1965-1968
Vietnam
hurricane sandy
The North Vietnam army was invading South Vietnam and Sv asked the US for help in repeling the Communist invasion.
To preserve the RVN from a communist take-over.
As most ecosystems are closed loop reactions, impact in one arena will cause a domino effect to occur. Ingestion of toxic insect, causes the birds to pass the toxins on to those higher up in the food chain.
Snow is very rarely seen in Vietnam. In mid-December 2013, it was reported that snow had fallen in northern Vietnam for the first time in many years.
WWII, Korean War, then Vietnam War
For the Doppler effect to occur the measured object must be in motion (radial velocity) relative to the emitter of a wave.
The greenhouse effect does not occur in space, it occurs within the Earth's atmosphere. Without the greenhouse effect, most living things would freeze to death.
Any special effect occur.
Korean War and Vietnam War.