SAN JUAN, Puerto Rico (AP) — A yearlong tour of duty at the Guantanamo Bay prison is ending for a Puerto Rico-based U.S. Army military police unit.

Members of the Army Reserve’s 613th Military Police unit primarily worked as guards at the U.S. base in Cuba. About 130 soldiers in the unit are scheduled to arrive back home Wednesday in Puerto Rico.

The Puerto Rico soldiers are being replaced by a military police unit based in Salt Lake City.

The U.S. holds 154 prisoners at Guantanamo for terrorism offenses or for suspected links to al-Qaeda and the Taliban. President Barack Obama had vowed to close the prison upon taking office but was blocked by Congress.

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