The following spring, 1941, as U.S. involvement in European hostilities increased, the Navy expanded its efforts to keep the sealanes open.

In May, the limits of the neutrality patrol were extended and the Navy gradually expanded its responsibilities for transatlantic convoys.

It turned out to work better than expected, prompting the Navy to vastly expand its size in step with expanding Soviet threat.

The Air Force and Navy are expanding their testing to reach that level, officers in those services said.

The Air Force and Navy would probably expand combat missions, service officials said, while the Marine Corps would not.

In the 1905-1916 period, the Navy continually expanded its radio communication capabilities.

From 76 ships and 7,600 sailors in 1861, the Navy expanded almost tenfold by 1865.

Since independence the Eritrean Navy has expanded its fleet of high-speed patrol boats.

The Navy was expanding its fleet to move beyond coastal defence onto the world stage.

Starting from March 2010, the Navy expanded its telepharmacy system to more sites throughout the world.