This report provides results of the 2010 Service Academy Gender Relations Survey (2010 SAGR) conducted by the Defense Manpower Data Center (DMDC). This survey is the sixth of a series of surveys mandated by the U. S. Code 10, as amended by Section 532 of the John Warner National Defense Authorization Act for Fiscal Year 2007. It assesses the incidence of sexual assault and sexual harassment and related issues at the U. S. Military Academy (USMA), the U. S. Naval Academy (USNA), the U. S. Air Force Academy (USAFA), and the U. S. Coast Guard Academy (USCGA). The survey results include incident rates of sexual assault, sexual harassment and sexist behavior, and stalking-related behaviors; a discussion of students' perceptions of Academy culture with respect to sexual assault and sexual harassment; the availability and effectiveness of sexual assault and sexual harassment training; and perceptions of program effectiveness in reducing or preventing sexual assault and sexual harassment. -- from the Executive Summary.