Did the US give Greenland back to Denmark? Trump omits history at Davos Although the United States defended Greenland during World War II, it never ruled the territory.Share this: US signs ‘tremendous’ security deal with Denmark and GreenlandDateSeptember 22, 2026In relation toAl-JazeeraTrump’s Push for GreenlandDateFebruary 22, 2026In relation toAl-Jazeera‘Greenland will not be part of the USA,’ territory’s PM assertsDateJanuary 13, 2026In relation toAl-Jazeera