President-elect Donald Trump will nominate Gen. Keith Kellogg to serve as assistant to the president and special envoy for Ukraine and Russia.

Keith Kellogg was appointed Wednesday as a special envoy to Ukraine and Russia. He served during the first Trump administration as chief of staff of the National Security Council.

In June, Reuters reported that General Keith Kellogg proposed Donald Trump a plan that would cease military aid to Ukraine unless it agrees to hold peace negotiations with Russia.