Defense Secretary Jim Mattis wants to overhaul military education and training to “regain” the art of warfighting following complaints by thousands of servicemembers that their time is being wasted by hours of mandatory training, according to a new memo obtained by Fox News.

The training that is the subject of complaints covers everything from alcohol use to active shooters to sexual harassment to stress management. 

Addressing the service secretaries and chiefs of the Armed Forces, Mattis has ordered the formation of a new working group to “determine changes to military personnel policies” to “equip more ready and lethal forces.” The working group will include the second in command of each branch of the U.S. military and report to the deputy secretary of defense and vice chairman of the Joint Chiefs of Staff.

The secretary wants each service to examine its military education to “regain a concentration on the art and science of warfighting” and look into the hours of “mandatory force training that does not directly support core tasks” such as flying jets, jumping out of planes, and hundreds of other U.S. military missions essential to defending the United States and its allies.