Mutual recognition occurred in 1947, upon Indian independence, while diplomatic exchange opened later.
He was returned to Germany as part of a diplomatic exchange.
A diplomatic "exchange of letters" has taken place with Algeria.
The case was extremely complex, requiring the court to review diplomatic exchanges dating back over 100 years.
The President stopped then, reminding himself that he was unschooled in diplomatic exchange.
On the one hand, growing diplomatic, military and commercial exchanges with the West inevitably involved increased intellectual contact.
He said diplomatic exchanges had shown that "there remain only a few points of disagreement, which could and should be resolved."
"Support" began to include some diplomatic exchanges and economic cooperation, preparing the way for much better relations after the war ended in 1988.
The rules of diplomatic exchange were based on compromise.
However, diplomatic exchanges and relations did not improve before November that year.