The deal - the value of which has not been disclosed - is significant in light of the US decision in late 2014 to ease its long-standing military embargo on Vietnam to allow the transfer of "maritime security-related defence articles".
The US State Department official said: "We are working together with Vietnam to deepen our security co-operation, which underpins the economic growth throughout Asia-Pacific.
The Metal Shark 75' Defiant is a welded aluminum pilothouse vessel designed for use in law enforcement, tactical fire fighting, pilot operations, or other missions where fast response, all-weather capability, large capacity, and extended range are key considerations. Like all Metal Sharks, the 75 Defiant may be fully customized to meet virtually any mission requirement.
NOTE: The image does not represent the actual acquisition of the project.