Reports suggest that the IDF stopped a group of Hamas frogmen trying to enter Israel by sea through a tunnel in Gaza. Hamas is a terrorist organization that has evolved into a multidomain warfighting group, operating on sea, air, land, underwater, and underground. Only the Tamil Tigers are known to operate similarly. Hamas has invested billions of dollars, provided by Gulf nations like Qatar, in constructing an extensive network of underground tunnels. This system is so vast that some Gazans are known to reside both above and below ground.
To obliterate groups like this, first and foremost, Israel must cut off the underground supplies, eliminate the support bases, and remove the cephalothorax of the spider that is taking out the Hamas leadership.