Germany's Chancellor Merz admits: Trump often applies pressure through a very forceful approach. The last American presidents politely asked us, "Please, finally do a little more for your own defense," but across Europe those requests largely fell on deaf ears. Now there is an American president who says, rather bluntly, "Enough is enough." And I cannot blame him. Just look at the numbers: the United States spends around 80 percent of NATO's defense resources, while Europe accounts for only about 20 percent. That is unacceptable. It has always been unacceptable.