The U.S. military struck Iran in response to an attack against an Apache helicopter, according to breaking news reports.Trump vowed to retaliate for the attack against the helicopter, saying that the U.S. "must, of necessity, respond," Axios reported. He said the attack against the helicopter "wasn't a big deal" in an interview with the Wall Street Journal, however.Axios noted that it wasn't clear what the U.S. military was targeting with the strikes, but Central Command described it as "a proportional response." CNN reported that the U.S. military was attacking islands along the Strait of Hormuz.Iranian state media reported explosions in a province called Hormozgan, which lies on the Strait of Hormuz, according to Axios. The Tasnim News Agency said that Iran vowed a "decisive response" to the attacks and called the allegation that it downed the helicopter a pretense, Axios reported."Foreign forces in proximity to our territory are at constant risk," Iranian Foreign Minister Abbas Araghchi wrote on X. "We prefer language of diplomacy but speak other languages too."