A US Marine in the Washington D.C.-area who recently returned from travel overseas has tested positive for the coronavirus, the Pentagon said on Saturday, in what would be the third confirmed case of a US servicemember contracting the virus. The other two US troops are in Italy and South Korea. 'A US Marine assigned to Fort Belvoir, VA, tested positive today for COVID-19 and is currently being treated at Fort Belvoir Community Hospital,' Pentagon spokesman Jonathan Hoffman said in a statement posted on Twitter. 'The Marine recently returned from overseas where he was on official business. (Defense Secretary Mark) Esper and the White House have been briefed.'