Vietnam War
12 countries took part.
Read about Vietnam War on Wikipedia
| Country | Years |
|---|---|
 Australia
|
1955 to 1975 |
 Cambodia
|
1955 to 1975 |
 Laos
|
1955 to 1975 |
 New Zealand
|
1955 to 1975 |
 North Korea
|
1955 to 1975 |
 People's Republic of China
|
1955 to 1975 |
 Philippines
|
1955 to 1975 |
 Russia
|
1955 to 1975 |
 South Korea
|
1955 to 1975 |
 Thailand
|
1955 to 1975 |
 United States
|
1955 to 1975 |
 Vietnam
|
1955 to 1975 |