Here are three issues that will take center stage at this week's UN summit

AP Photo/Evan Vucci

President Donald Trump at Andrew's Airforce Base.

The United Nations convenes this week for its annual General Assembly speeches and meetings, with President Donald Trump making his debut appearance before the general assembly.

While Trump commended UN Secretary General Antonio Guterres' efforts to reform the UN in comments on Monday, he and his administration have a packed schedule of high-level meetings over the next week with diplomats to try to sort out many of the world's biggest issues.

Trump's comments on Monday, which came at the US-sponsored "Reforming the United Nations: Management, Security, and Development" forum, included sharp words for the UN.

The UN "has not reached its full potential because of bureaucracy and mismanagement," Trump said, adding that the group spends too much money and has too many staffers.

Trump will make his first speech to the UN General Assembly, which consists of all 193 member nations, on Tuesday morning.

Here are the three most-pressing issues that will likely take center stage during this week's events.