TAIPEI (Reuters) – Taiwan’s Defence Ministry on Tuesday said deliveries of shoulder-fired Stinger anti-aircraft missiles could be delayed, saying they were pressing the United States to deliver on schedule as the war in Ukraine pressures supplies. The missiles are in hot demand in Ukraine, where they have successfully kept Russian aircraft at bay, but U.S. supplies have shrunk and producing more of the anti-aircraft weapons faces significant hurdles. The United States approved the sale of 250 of Raytheon Technologies’ Stinger missiles to Taiwan in 2019. Taiwanese media has reported Taiwan expe…