The First World War.
World War I
The only country to have used nuclear warfare in history is the USA
how was the fist pistol used in warfare it was used in close combat if nessasary
No, trench warfare was not widely used in World War II as it was in World War I.
There are no records to determine which country first used ships to trade with.
Trench Warfare
During World War Two, the first mechanized warfare was used in fighting. This was in the form of tanks and airplanes.
Finland
China used paper as currency in the world for the first time.
Trench warfare.
they used trench warfare and used powerful machineguns