An Arizona Army National Guard helicopter unit is returning to its base in Marana outside of Tucson from deployment to Afghanistan.

The 37 soldiers of B Company of the 1st Battalion of the 285th Attack Reconnaissance Battalion are returning to Arizona after their second deployment since 2007.

The Guard says the company set standards for operational readiness and execution of assigned missions while in Afghanistan.

The Arizona Guard says more than 475 soldiers are currently serving on federal active duty in Afghanistan and elsewhere.