First in the series on Battlecruiser development and history, this covers the genesis of the concept in very general terms. It shows the background, why they were developed, and how.

Further videos will come covering the details of different nations doctrine and designs.

Further reading:

https://www.amazon.com/BritishBattle...
https://www.amazon.com/BritishGerman...
https://www.amazon.com/BritishBattle...
https://www.amazon.com/GermanBattlec...