The Marine Corps on Wednesday notified a sergeant who has been openly critical of President Barack Obama that he is violating Pentagon policy barring troops from political activities and that he faces dismissal.

Camp Pendleton Marine Sgt. Gary Stein started a Facebook page called Armed Forces Tea Party to encourage fellow service members to exercise their free speech rights. He declared a few weeks ago that he would not follow the unlawful orders of the commander in chief. Stein also criticized Defense Secretary Leon Panetta for his comments on Syria.