So Russia has a new laser system, called Peresvet. Pere-who? This gets me talking, for the last of the Twelve Days of Shadowy Christmas cellcasts, about the battle of Kulikovo in 1380 - and why it matters in 2021.
(It is, by the way, a bit of a fascination for me, and if you're interested you can find more about it in my book Kulikovo 1380: the battle that made Russia)