United Nations Secretary-General Antonio Guterres will meet with US President Donald Trump at the White House later today. <br/><br/>UN spokesman Stephane Dujarric said, they will discuss UN reform along with issues of mutual concern.<br/><br/>It will be the UN Chief's first full formal meeting with Mr Trump at the White House. <br/><br/>Last month, Mr Guterres held a bilateral meeting with the US President during the UN General Assembly session in New York during which Mr Trump also led a high-level meeting on UN reform.<br/><br/>US is the biggest financial contributor to the UN, providing 22 percent of its 5.4 billion US dollar core budget and 28 percent of its 7.3 billion dollar peacekeeping budget.