WASHINGTON (Reuters) – Russia could invade Ukraine within days or weeks but could still opt for a diplomatic path, White House national security adviser Jake Sullivan said on Sunday. “We are in the window. Any day now, Russia could take military action against Ukraine, or it could be a couple of weeks from now, or Russia could choose to take the diplomatic path instead,” Sullivan told the “Fox News Sunday” program. Sullivan made the comments in television interviews after two U.S. officials on Saturday said Russia has in place about 70% of the combat power https://www.reuters.com/world/europe/…