Since his first administration, President Donald Trump has stressed the need for U.S. allies to take on more of the burden to offset what he has said are decades of them taking advantage of the United States.

NATO defense ministers are set to approve plans to buy more weapons and military equipment to better defend Europe, the Arctic and North Atlantic.

NATO countries are using creative math to meet the U.S. president’s demand to more than double annual spending, partly by expanding what counts beyond soldiers and weapons.