Twenty-one members of Port Security Unit 309, out of Port Clinton, Ohio, are arriving at Cleveland Hopkins Airport Saturday.
PSU 309 was deployed to the Persian Gulf in February in support of Operation Iraqi Freedom.
Port security units are self-sustainable units capable of deploying within 96 hours of notification and are able to establish operations within 24 hours of arrival in theater. The mission of a port security unit is to provide waterborne and limited land-based protection for shipping and critical port facilities.