There was a cautious note of optimism among some Ukrainians for retired Gen. Keith Kellogg’s past supportive remarks for Ukraine to defend itself.

President-elect Donald Trump and some of his appointees have expressed skepticism about sending Ukraine additional military aid.

Brian Hughes, a spokesman for Mr. Trump’s presidential transition team, said in a statement on Wednesday that the second Trump administration would “have a place for people serving in government who are committed to defending the rights of the American people, putting America first, and ensuring the best use of working men and women’s tax dollars.”