US Defense Secretary Lloyd Austin on Wednesday expressed “deep concern” to his Israeli counterpart Yoav Gallant over strikes on the Lebanese army after three soldiers were killed over the weekend. Lebanon’s military said Sunday that an Israeli strike had targeted the soldiers’ vehicle in the country’s south. The deaths brought the number of Lebanese troop casualties to eight killed since Israel waged all-out war on the country last month In a call with Gallant on Wednesday, Austin “expressed his deep concern about the reports of strikes against the Lebanese Armed Forces,” Pentagon spokesman Ma…