The Naval SITREP is published twice a year by the Admiralty Trilogy Group. It supports the Admiralty Trilogy game system with scenarios, articles on history and technology, and rules expansions & corrections. The Naval SITREP Issue #61 was published in October of 2021. Table of contents: Tracking Changes in the Rules Harpoon V Scenario: Pasdaran Swarm Attack (with supporting annexes) Iranian Damage Tracker Chinese Gun Correction (the “Type 61” 100mm) Dawn of the Battleship Scenario: Corfu Challenge (with supporting annexes) Harpoon V Scenario: Operation Trimdon - The Vung Tau Ferry (with supporting annexes) Combat Ships of the People’s Liberation Army Navy in the 20th Century Rule Changes and Corrections Correcting ASW Projectors (with new Annex E3) Product Updates 3D-WILD Miniatures Book Reviews Admiral Gorshkov, the Man Who Challenged the U.S. Navy, by Norman Polmar, Thomas A. Brooks, and George Federoff