Last year it held a big naval exercise to demonstrate its anger with the gas drilling.

Additionally, the naval exercise emphasized joint and combined port security and harbor defense operations in a friendly host nation.

The sub was relatively close to shore and in the middle of a large naval exercise.

The highlight of the naval exercise, for the second year in a row, was the use of trained dolphins to help detect underwater intruders.

There have been joint naval exercises and a flourishing bilateral arms business.