Israel’s military has warned that Hamas militants from Gaza are still fighting inside Israel after they infiltrated southern communities and left a reported 250 people dead. Prime Minister Benjamin Netanyahu has told Israelis they are going into a “long and difficult war”. Hundreds of gunmen burst into southern Israel, killing soldiers and civilians, and taking into Gaza what the army said was a “significant number” of hostages. Israel has responded with air strikes. These have continued on Sunday morning, with the Israeli Air Force saying it was targeting “operational infrastructure” in Gaza. Israel also carried out artillery strikes in Lebanon,...