Naval diplomacy and Anglo-Japanese war scares

How many potential wider wars were avoided through effective naval diplomacy?

No total is given; Britain and Japan nearly fighting in 1939 and 1940 are offered as examples of diplomacy delaying conflict.

Britain and Japan are cited as having come close to conflict in 1939 and again in 1940. In this interpretation, diplomacy delayed their confrontation beyond those scares. The answer supplies examples without estimating a total number of avoided wars or claiming that Anglo-Japanese conflict was permanently prevented.