Philippine teachers on Tuesday gave families returning to the destroyed lakeside city of Marawi a course on how to identify unexploded bombs in their homes and warned them to stay clear. The military on Monday announced the end of five months of military operations in a southern city held by pro-Islamic State rebels, after a fierce and unfamiliar urban war that has marked the country’s biggest security crisis in years. The head of the Marawi Crisis Management Committee, Zia Alonto Adiong, said that with the death of Isnilon Hapilon and Omar Maute, the eagerness of the more than 390,000 displaced Marawi City residents to return home is mounting.