"Johnson argued that without the United States continuing its arms and ammunition lifeline to Ukraine, Russia could score a victory that would prompt it to march deeper into Europe, drawing the US into another world war. He said a failure to act would bolster the emerging de facto axis of totalitarianism between Russia, Iran and China."
https://www.cnn.com/2024/04/20/politics/mike-johnson-ukraine-aid-russia-zelensky-putin/index.html