Israel vowed to blaze through Gaza and destroy Hamas — a task it may find impossible

The logistics are complex. Israel would have to seize control of a convoluted network of bases and underground tunnels Hamas operates within an urban environment, as previously reported by Insider's Jake Epstein. "I don't think there's a way to overstate how extraordinarily difficult it will be," Tobias Borck, a Middle East expert at the Royal United Services Institute, a London think tank, told NBC News. "It's not going to just be street by street but house by house and tunnel by tunnel."