...You do realize WW2 stuff is cool. Right it's it's easier to get more information on than more modern things which have more informations scarce and classified. Also he does WW1 and cold war as well.
@@congnghequansuvn474 : As far as i know, in a Latin America country a river monitor, build in 1930s is still in service, and Switzerland still has for sevice on large border lakes an upgraded boat from 1940s.
