U.S. President Donald Trump on Wednesday told NATO allies to commit to spending 4 percent of their economic output on defense, up from the current goal of 2 percent.Trump made the suggestion on the first day of a two-day summit of the North Atlantic Treaty Organization in Brussels, a senior U.S. administration official said.The U.S. president has been pressing other NATO members to increase their defense outlays, accusing them of freeloading at the expense of the United States.NATO leaders reiterated their "unwavering commitment" to boost defense spending in a declaration they signed on Wed…READ FULL ARTICLE