While Marines have yet to test a combo of USV, UUV and attack drones, such a trial is possible in the near future, according to Lt. Gen. Karsten Heckl.
Biden is likely to face questions from NATO allies on why he would send a weapon into Ukraine that more than two-thirds of alliance members have banned.
By Zeke Miller, Tara Copp and Lolita C. Baldor, AP