The United States believe that fighting in Ukraine can last many more months. This was stated on June 1 by US Secretary of State Anthony Blinken.
“We cannot predict how and when it ends. According to our most optimistic estimates to date, the conflict will last many more months. But everything can end tomorrow if Russia decides to stop aggression,” Blinken said on a joint Press Conference with NATO Secretary General Jens Stoltenberg in Washington.