First, there is no way that tents can be set up for well over a million people in short order. And COGAT (aka lying sociopaths central) will ensure that not nearly enough tents will be let in (as they've done with food and medical aid since the beginning). They will suffer outside in the elements yet again.
Israel declared that the UN and other agencies will set up the tents. I assume without asking first. How very entitled and arrogant. The UN will not be a part of any ethnic cleansing operation in any case.
By international law, civilians cannot be moved from their homes unless there is already a fully-functional humanitarian area, with water, food and tents that they can move to. But that has never stopped Israel, has it? People were moved last year from Rafah to Mawasi, basically just a strip of land with no facilities. It was supposed to be a "safe zone" but kept getting bombed nevertheless. Now Mawasi is one of the two areas - the other being Gaza City - that are going to be invaded. And so where do the hundreds of thousands of people from Mawasi go, along with the million or so from Gaza City? Why, ta da - they will go to the new "humanitarian cities" (aka transfer hubs) run by GHF and the IDF, in the Rafah area, right next to the Egypt border - of course!
This whole Gaza City/Mawasi operation is nothing more than the first step in the ethnic cleansing plan. Disguised as "getting Hamas". How many times does Israel have to "get Hamas" and how much longer does it think ANYONE will believe them? Even its own citizens see the lies now. Too bad though that most Israelis are not concerned with the suffering and fate of Palestinians - only with the hostages - and support the ethnic cleansing plan. With a few brave and honourable exceptions, all respect to them and may their numbers increase daily.