Vietnam

Etymology
. Extended senses come from the Vietnam War.

Proper noun

 * 1)  The Vietnam War.
 * 1)  The Vietnam War.
 * 1)  The Vietnam War.

Noun

 * 1) A long and protracted war or conflict in which the dominating foreign occupier is unable to secure a victory.
 * the Soviet Union's Vietnam (the 1979–89 occupation of Afghanistan)
 * France's Vietnam (the Algerian War or First Indochina War)
 * 1)  A place that is very dangerous, especially if afflicted by violence.
 * 2)  A situation in which one cannot win.
 * 1)  A situation in which one cannot win.
 * 1)  A situation in which one cannot win.
 * 1)  A situation in which one cannot win.

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Usage notes

 * The plural Vietnam refers to North Vietnam (German: Nordvietnam) and South Vietnam (German: Südvietnam).

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