Scott Olson/Getty ImagesDonald Trump's suggestion for increased NATO defense spending has divided European countries.Trump called for NATO members to raise defense spending to 5% of GDP.Many European NATO members have struggled to meet the current 2% defense spending goal.Donald Trump's suggestion that NATO members should allocate 5% of their GDP on defense has prompted mixed reactions in Europe.The president-elect floated the figure — which is more than double the current target — at a press conference on Tuesday."I think NATO should have 5%," he said.