US must deliver 'what they promised' to Ukraine: Nato chief

Nato Secretary General Jens Stoltenberg on Saturday called for the United States to deliver "what they have promised" to Ukraine, while a $60-billion package of military aid was blocked in Congress. There was a "vital and urgent need for the US to decide on a package for Ukraine because they need that support", Stoltenberg told the Munich Security Conference, adding: "So now it's for the US to deliver what they have promised".