the purpose is to ensure peace in the region by helping them hold a line of defense against military attacks from antagonistic countries

"we created this artificial problem and now we need to protect this artificial problem from the problems it created"

in the case of Hamas, for the anti-terrorism operation of removing Hamas from power in Gaza, so that Palestinians can pursue self-determination free from terrorist rule

"Whatever Gazans are still left after the Gazan genocide SMO will be free to return to their unacceptable living conditions they had before Hamas, wherein they had unacceptable living conditions but were run by a resistance terro (okay I'm not calling them that even for a bit) organization. Then we can all celebrate their return to unacceptable living conditions because it's not bothering Westerners any more"