9For more than a decade this annual volume has provided an authoritative summary of all that has happened to the world's navies and their ships in the previous twelve months. It combines regional surveys with major articles on important new warships and looks at wider issues of significance to navies such as aviation and weaponry. The contributors come from around the globe and as well as providing a balanced picture of naval developments, they interpret their significance and explain their context. As well as its regular regional reviews, the 2022 volume focuses on three fleets: the Sri Lankan Navy, the Spanish Navy and the Royal Navy. There are in-depth articles on the Argentinian Bouchard Class OPVs, the Russian Project 20380 Stereguschchiy Class corvettes, and the Royal Navy's Batch 2 'River' Class OPVs. The technological section looks at optronic systems and offboard mine countermeasures, and there is the regular review of what is happening in naval aviation, which includes coverage of the US Marine/Navy MV-22 tiltrotor. Now firmly established as the only annual naval overview of its type in the world, The Seaforth World Naval Review is essential reading for professional and enthusiast alike. It takes the reader to the heart of contemporary maritime affairs.