TEL AVIV, Israel (AP) — Israel’s military says it struck an Iranian nuclear research facility and killed three senior Iranian commanders in targeted attacks, while emphasizing it was preparing for the possibility that the war could turn into a lengthy campaign. Early Saturday, smoke could be seen rising from an area near a mountain in Isfahan, where a local official said Israel had attacked the nuclear research facility in two waves. Iran continued to launch drones and missiles at Israel but there were no immediate reports of significant damage. Israel says its military has been targeting Iran’s missile launchers, and estimates it has now taken out more than 50% of them.