I was sceptical about the Rafah invasion in the last three months. With effective US veto, and no sufficient IDF troops, it seemed empty talk. But now it seems that the US gave permission for some action in Rafah (in return for limited Israeli response against Iran), and troops are being amassed

And smart people I know think it's going ahead. I am not convinced, but can't rule it out in the way I did a month ago.

Ugh

Where are you getting that particular sequence? I've seen the reports of massed troops, but not US approval