USS Philadelphia returning from last mission

The attack submarine USS Philadelphia is slated to return to the United States this week from its last deployment, marking an end to 33 years of service.

The Philadelphia (SSN 690) is expected to arrive at the Naval Submarine Base in New London, Conn., on Wednesday.

The Los Angeles class submarine will be decommissioned later this year on a date yet to be set.

On its last deployment, the Philadelphia was involved in operations in the U.S. Central Command area and made port calls in Scotland, Bahrain, and Gibraltar, the Navy said.

The sub is the sixth U.S. Navy vessel to be named after the City of Brotherly Love.