https://cdnph.upi.com/ph/st/th/9961781223389/2026/upi_com/2977c766847823974a1885403f7884c3/v1.5/UK-defense-secretary-resigns-in-protest-over-military-spending.jpg" /> U.K. Defense Secretary John Healey resigned on Thursday after criticizing his government for spending "well short" of what it should on the military.