Documents found by the Israeli military in the Gaza Strip have revealed crucial details about Hamas’ battle strategy inside tunnels, as per a report. The documents, including a 2019 handbook, reveal how Hamas fighters were preparing for combat within its tunnel network in Gaza, The New York Times reported. The documents highlight how Hamas has refined its tunnels and combat strategies in anticipation of underground battles it expected to face. Records from the battlefield showed Hamas preparations, including blast doors to protect against Israeli bombs and soldiers, NYT reported.