U.S. Secretary of State Antony Blinken made an unscheduled visit to Kyiv on Thursday as the Biden administration announced major new military aid worth more than $2 billion for Ukraine and other European countries threatened by Russia. In meetings with senior Ukrainian officials, Blinken said the Biden administration had notified Congress of its intent to provide $2 billion in long-term Foreign Military Financing to Ukraine and 18 of its neighbors, including NATO members and regional security partners, that are “most potentially at risk for future Russian aggression.” Pending expected congressional approval, about $1 billion of that will go to Ukraine...