U.S. Defense Secretary Pete Hegseth shares the reason behind the Department of Defense's rebrand. #foxnews #news #us #fox #usa #new #news #breaking #petehegseth #hegseth #departmentofdefense #dod #defense #military #armedforces #war #nationalsecurity #washingtondc #washington #dc #politics #political #politicalnews #government #defensepolicy #usmilitary #security Subscribe to Fox News: https://bit.ly/2vBUvAS Watch more Fox News Video: http://video.foxnews.com Watch Fox News Channel Live: http://