Displaced Lebanese cannot return to southern Lebanon because of Israel's documented use of white phosphorus in the villages of Nabatieh, Tyre, Khiam, and Yohmor. With fresh evacuation orders and over 1 million people displaced, residents of southern Lebanon have nowhere to go.
That’s why they (and others) wrote the “smoke cover” loophole into international law.
They just don’t clarify that the “smoke cover” happens inside of their victim’s lungs, as well as other body cavities after the phosphorus burns through the skin.