Pentagon: US troops have reported more than 20,000 allegations of sexual assault at military installations over the past four years

US troops have reported more than 20,000 allegations of sexual assault at military installations over the past four years, the Pentagon said in a report Friday. The report, by the Defense Department’s Sexual Assault Prevention and Response Office, details allegations by service branch for the fiscal years 2013-2016, with the Army — the largest branch of…