The First World War introduced a new form of battleground other than ground warfare. Now there was aeriel and sea conflict.
Aerial Hot air balloons used to spot artillery Hot air balloons filled with Helium, and so when a bullet hit them at a certain speed, they would blow up. Vulnerable to ground fire Zeppelin airships used to drop bombs Frequent air bombs on cities and towns Dog Fights Two planes fighting each other Machine guns operated by gunner Air of the Aces Had to have a least 5 victories in a dog fight to become an Ace. Canada's Billy Bishop had the third most amount of kills (72 victories) Balloon Busting Hard to do blow up balloons Often overlooked but hard to do
Sea Battleships Dreadnaughts U-Boats (under sea boats) Town Cruisers were used for long range transport protection Anti submarine equipment such as depth chargers