President Joe Biden said it’s not clear yet whether he will make COVID-19 vaccinations mandatory for all U.S. service members once the shot is fully approved by the Food and Drug Administration. “I don’t know. I’m going to leave that to the military,” Biden told “Today” on Friday. “I’m not saying I won’t. I think you’re going to see more and more of them getting it. And I think it’s going to be a tough call as to whether or not they should be required to have to get it in the military, because you’re in such close proximity with other military personnel.” According to the most recent Defense Department statistics, approximately 780,000 U.S. troops are either fully or partially vaccinated as of April 28. The Marine Corps said that as of April 23, approximately 93,500 Marines had received the COVID-19 vaccine while 52,900 Marines have declined a shot, or about …