The White House has rejected a proposal from the U.S. military to send civilian contractors to Ukraine to maintain F-16s and other equipment, the Wall Street Journal reported on Aug. 31. Citing officials familiar with the matter, the WSJ said the U.S. intelligence community ruled the plan too risky and “raised concerns over the prospect of Russia targeting American contractors in Ukraine.” Though the move has not been ruled out in the future, the Biden administration is hoping European countries will take partial or even full responsibility for maintaining Ukraine’s recently-delivered F-16s. O…