The United States expressed concern that Iran may provide Russia with Ababil and Fateh-110 short-range ballistic missiles to use in Ukraine. Russian Defense Minister Sergei Shoigu had viewed displays of the missiles during a visit to Tehran in September. U.S. National Security Council spokesman John Kirby said that, in return, Iran wants to purchase combat aircraft, radars, and attack helicopters from Russia. He added that Russia has already helped Iran on its space program and has offered cooperation on missiles, military electronics, and air defense.