
MUNICH, Feb 15 (Reuters) - The United States has sent a diplomatic demarche to European capitals asking them what they could contribute in terms of security guarantees for Ukraine, four Europeans sources said on Saturday.
The sources said the a document was sent asking questions that include possible future troop contributions, with two of the sources adding that it had been sent earlier this week.
The U.S. State Department did not immediately respond to a request for comment.