5 Australian Involved Wars By KurtisAlbert Period: Jan 1, 1914 to Jan 1, 1918 World War I Period: Jan 1, 1939 to Jan 1, 1945 World War II Period: Jul 13, 1950 to Jul 13, 1953 Korean War Period: Jan 1, 1962 to Jan 1, 1975 Vietnam War Period: Jul 13, 1990 to Jul 13, 1991 Iraq War: The First Gulf War