“Nevertheless, Germany owes vast sums of money to NATO & the United States must be paid more for the powerful, and very expensive, defense it provides to Germany!” he continued.

The message was misleading because no nation actually “owes” money to NATO; its direct funding is calculated through a formula and paid by each of the 28 nations that are members.

Mr. Trump may have been referring to the fact that Germany, like most NATO countries, falls short of the alliance’s guideline that each member should allocate 2 percent of its gross domestic product to military spending, but that money is not intended to be paid to NATO or to the United States.