Israel is preparing to launch a ground offensive into Gaza to destroy Hamas' extensive tunnel network, according to Israeli defense officials. The underground tunnel system, stretching hundreds of kilometers and reaching depths of up to 80 meters, is described as a "spider's web" by one freed hostage and as the "Viet Cong times 10" by an expert. The tunnels serve various purposes, including attack, smuggling, storage, and operational burrows. Despite Israel's investment in tunnel detection technology, Hamas is believed to still have functioning tunnels to the outside world. The United States warns that Israel's special forces will face an unprecedented challenge in battling Hamas militants while avoiding harming hostages held below ground.

As part of its strategy to combat the tunnel network, Israel has developed "sponge bombs," which are designed to seal off tunnel entrances. These innovative devices unleash a sudden burst of foam that rapidly expands and solidifies, preventing enemy fighters from emerging through the gaps. The "sponge bombs" have been deployed during training exercises, and their utilization is expected during the impending ground invasion. Specialized teams within the Israeli Defense Forces have also been equipped with tunnel reconnaissance units and specialized equipment for underground operations. Israel anticipates a long and difficult ground offensive as it aims to destroy the extensive network of Hamas tunnels.