In 1979, the United States and its erstwhile World War II ally China, resumed diplomatic relations. In 1980, more than 2.5 million Asian immigrants entered the United States. In 1990, the number of U.S. immigrants from Asia was second only to Latin America. Many Asian/Pacific Americans joined the U.S. Army and where they contributed immeasurably to the security of the United States and to the end of the Cold War. Many were promoted to senior officer ranks, including some to general officer. In 1991, Asian/Pacific American Soldiers fought valiantly in Operation Desert Storm (also known as the Gulf War), helping to liberate Kuwait from Sadaam Hussein's invasion forces from Iraq.