I figure it will take awhile to flatten the entire Gaza strip, place one inch of salt, cover that with 4 inches of industrial waste and then another 6 inches of human waste.
Give it 20 years and build condos, casinos and golf courses.
That won't work unless you eliminate the cockroaches and vermin that infest Gaza. Look at what happened to Lebanon, it used to be called a paradise in the M.E., it had luxury stuff and was a tourist destination for Christians. All gone due to the radical muslims.