The Mufti said to Hitler during that meeting “The Arabs were Germany’s natural friends because they had the same enemies as had Germany, namely....the Jews”
Of course, that’s totally changed now with the expanding Abraham Accords. Israel today has peace with two out of four neighbors, both of whom tried to destroy Israel twice!
As for why does winning the war take so long: hostages. The wars w/ Iran and Hezbollah were fast, no hostages.