Trump set for whirlwind UN meetings with wars in Iran, Ukraine on agenda

By Gram Slattery and Humeyra PamukUNITED NATIONS, Sept 22 (Reuters) - Donald Trump is set for a whirlwind schedule of meetings with leaders from four continents at the UN General Assembly on Tuesday, against the backdrop of an unstable Middle East and a four-and-a-half-year-old war in Ukraine that…