The USS Simpson has been decommissioned after 30 years, signifying an end of an era in the naval fleet of the U.S.

The vessel, which was built in 1984, was the last warship to down an enemy during battle. It had sunk the Joshan gunboat of Iran when both vessels went to war in 1988 at the Persian Gulf.

But he vessel has been retired, as Department of Defense is now trying to acquire financial resources to complete its new zumwalt-class fleet, according to the Daily Mail.

In addition to the new fleet that is being finished, the vessel is being retired from service as it has gone way past the 20 to 25-year mark of its designed military use.

The technology used in the vessel is almost 50 years old because the Simpson was one of the last vessels that was created in the Oliver Hazard Perry class of frigates with technology from way back in the '60s and '70s, CNN reported.

The vessel's weapons have been taken off, windows have been covered and flags have been lowered. Its service officially ended on Tuesday in a ceremony held at the Mayport Naval Station.

The vessel will then be taken to Philadelphia, where it will stay until an ally of the U.S. buys it, according to the Florida Times-Union Jacksonville.