The Royal Navy had Asdic for submarine detection. Initially it was quite primitive. I'm thinking Sonar, as such, is more recent than WW2.
Sonar was not introduced in World War 1.
True
yes
Not used in WWI, it was designed as a part of Manhattan Project and used on submarines and other vessels during WWII.
The tank was well in use by the start of WWII. They were first developed by the French and British during the First World War.
Sonar was not introduced in World War 1.
True
Developed after the first world war in Germany.
Sonar
sonar
yes
During World War I.
lazors, GPS, radar, and sonar are all examples of things developed for war that are used today
Sonar was used to detect and hunt submarines in WW2
sonar
Explain the division of Germany after world war 2 and how it changed and developed within the first few ears after the war?
It didn't; Submarine Sonar wasn't developed until the '30's, and during WWII it saw limited use aboard submarines. Back then, it was essentially a bearing / speed indicator for a target, but not much more.