(CBS News) For the third time in two weeks, a U.S. military officer charged with his branch's sexual assault prevention efforts is. Lt. Col. Darin Haas, the head of the sexual assault response program at Fort Campbell, Ky., turned himself in on Thursday for violating a restraining order in a domestic dispute with his ex-wife. According to a statement issued by the Army, Haas has been removed from his position.
News of the Haas incident came as President Obama met with Secretary of Defense Chuck Hagel and military leaders on Thursday. Mr. Obama sternly called for a "sustained effort" to "leave no stone unturned" in the push to combat sexual assault in the military and reform the system for reporting and prosecuting assault cases.
"Not only is it shameful and disgraceful but it also is going to make and has made the military less effective than it can be," the president said Thursday.
In addition to Haas, recent cases include that of, who managed the sexual assault prevention program for the Air Force and is charged with groping a woman and an army sergeant at Fort Hood, Tex., who oversaw his unit's sexual assault response protocol and for "abusive sexual conduct" and prostitution.
Democrat and Republican leaders in Congress are backing the charge for reform,, unveiling a bill Thursday to overhaul the way the military handles these cases. Senator Barbara Boxer, D-Calif., insists the traditional military chain of command cannot adequately handle the problem.
"Ninety percent of the people who are abused are not reporting it. So anyone who tells you that it should stay in the chain of command should understand it's in the chain of command and it's an utter failure," Boxer said at a press conference as she stood alongside former Air Force, a rape victim who says low-ranking service members are unable to seek justice within the current system.
Sen. Kristen Gillibrand, D-N.Y., introduced the bill this week and called the recently reported incidentson "CBS This Morning."