White House says Trump to meet Poroshenko on 21 Sep
Trump will also meet several other foreign leaders that day.
The White House has confirmed that a meeting between US President Donald Trump and Ukrainian President Petro Poroshenko is scheduled for 21 September.
US National Security Adviser Herbert McMaster said that Trump would also meet the leaders of Turkey, Afghanistan and Ukraine.
"The last two countries, in particular, have undergone direct and constant attacks on their sovereignty in recent years," he said.
Trump will also meet the leaders of South Korea and Japan that day.