DAN SNOW:Hello, I'm Dan Snow. World War One was the first major conflict where planes played a key role in the fighting. DAN SNOW:Not just to be used in reconnaissance missions, but dropping ...

How did technological and industrial development revolutionise World War One? The tank, gas, flame throwers, Zeppelins were like nothing that had been experienced before.

German airships were called Zeppelins. Large bags filled with hydrogen ... LILY’S GREAT-GREAT-GRANDDAUGHTER: At the start of World War One Britain was protected by the largest navy in the ...