To mark the 100th episode of What is this Weapon, the Royal Armouries hosted a special live episode at our flagship museum in Leeds in the UK. Befitting such a prestigious landmark for the series, our 100th weapon is one of Jonathan's all time favourites and has a back story immersed in the stalemate of the Western Front in 1915 and a background super villain straight out of a Sherlock Holmes novel. Everyone here at the Royal Armouries would like to thank all our fans who attended our live event as well as all our subscribers for continually supporting the series and engaging with all our content. What is this Weapon wouldn't be what it is without its fantastic community.