In the 1980's there were substantial increases in appropriations for antisubmarine warfare.

Her mission, however, remained antisubmarine warfare though in a more defensive rather than offensive mode.

Modified Nord 2502 intended for antisubmarine warfare, cancelled not built.

At this point we are allocating the right amount to antisubmarine warfare.

Now, expensive, new developments in antisubmarine warfare will be needed, the officials say.

But even for essential tasks like antisubmarine warfare, there's not a lot more money available.

The next 2 years were filled with intensive antisubmarine warfare and convoy exercises.

Training off the west coast in antisubmarine warfare and gunnery completed 1967.

There, her duties included services to aircraft and surface ships to help them hone their skills in antisubmarine warfare.

Thus, you might expect the Brazilian navy to be devoted to antisubmarine warfare, and it is.