Some legal experts have said that the United States could be obligated to try some of its soldiers for war crimes. Under the Third and Fourth Geneva Conventions, prisoners of war and civilians detained in a war may not be treated in a degrading manner, and violation of that section is a "grave breach". In a November 5, 2003 report on prisons in Iraq, the Army's provost marshal, Maj. Gen. Donald J. Ryder, stated that the conditions under which prisoners were held sometimes violated the Geneva Conventions.