As part of the Army’s effort to integrate women into combat roles, it allowed this unnamed female staff sergeant to try out via the 75th Ranger Regiment’s Ranger Assessment and Selection Program 2 (RASP 2) June 16, Army Times reports.

“The female soldier did not meet performance objectives required for assignment to the 75th Ranger Regiment,” Lt. Col. Robert Bockholt, a spokesman for U.S. Army Special Operations Command (SOCOM), told Army Times. “The female soldier has been afforded the opportunity to reapply for RASP 2 beginning December 2016.”

Staff sergeants can attempt the 21-day course, which is offered nine times a year, to join the elite special operations unit. Secretary of Defense Ash Carter opened all combat roles to women in December.

Then-SOCOM commander Army Gen. Joseph Votel elected not to request an exemption for special forces to keep those combat roles male-only.