The topic of the 'Gaza blockade' is central to the content of the two podcast episodes provided. Both episodes Medical Aid Worker Describes the Bloody Aftermath of Israel's Hostage Rescue and The movement to break Israel's siege on Gaza discuss the devastating impact of the Israeli blockade on the people of Gaza, including the shortage of medical resources and the efforts of activists to deliver humanitarian aid.

The episodes provide first-hand accounts and detailed information about the ongoing humanitarian crisis in Gaza, as well as the obstacles and confrontations faced by those attempting to break the siege through aid convoys and other means.