relations
The United States Marine Corps is responsible for security of diplomatic missions
Benjamin Franklin.
1933
A diplomatic what?
After Germany declared war on the US (December 11, 1941) US diplomatic personnel were repatriated via Switzerland.
the united states
Full diplomatic relations were established with China
No. The United States had full diplomatic relations with the Republic of Vietnam (colloquially called South Vietnam) from 1954-1975 when that country was conquered by the Socialist Republic of Vietnam (colloquially called North Vietnam or just Vietnam today) in 1975 at the close of the Vietnam War (the Vietnamese call it the American War). The United States established full diplomatic relations with the Socialist Republic of Vietnam in 1995 as Vietnam embraced a market economy and was beginning to reach out to other ASEAN nations.
During the open door policy.
Yes. Both countries have a full diplomatic relationship established; both have embassies and both have a small but ongoing trade office at each other's capital city.
Both countries had issues with the U.S.S.R. (present-day Russia) and "the enemy of my enemy is my friend".
The People's Republic of China was recognized by the US on January 1, 1979 as the sole legal government of China. The recognition established the diplomatic relations of the two countries. This was an accomplishment of President Jimmy Carter.
1994
1940
In 1961 the US ended diplomatic relations with Cuba.
diplomatic
Cuba