SAS Rogue Heroes
SAS: Rogue Heroes charts the creation of the famed Special Forces unit. Based on the book by Ben Macintyre.
https://www.imdb.com/title/tt10405370/
Only six episodes in season one and its unapologetically British to the nth degree, but I loved this show. Slow first ep, but then it takes off and goes all the way.
Can't wait for season 2.