Answer:
At the start of the First World War, aircraft like the B.E.2 were primarily used for reconnaissance. Due to the static nature of trench warfare, aircraft were the only means of gathering information beyond enemy trenches, so they were essential for discovering where the enemy was based and what they where doing
TANKS
Things like barbed wire and machines guns and trenches had turned warfare (from about the time of the US Civil War through WWI) into a process in which the defense had a huge advantage. Tanks changed that. They were able to drive over all sorts of terrain, including trenches and they were able to smash barbed wire.
Answer:
Introduced the concept of mechanized warfare
Explanation:
sorry if its wrong
