Radio Relay
The First World War marked the dawn of the modern age. A war that began for British forces with a cavalry charge in Belgium ended in battles that coordinated tanks, heavy artillery, machine guns, and aeroplanes.
Part of this astonishing technological change was radio. The first commercial radio sets were built by Guglielmo Marconi, an Italian inventor who had moved to Britain in 1896 to develop his invention. Many of the transmitters used by British troops during the First World War were developed by Marconi (who himself fought on the Italian side).
Soon, the value of this cutting edge radio technology became clear. Radio allowed instantaneous communication between commanders on the front line of the Western Front, while operators with portable transmitters were responsible for alerting troops to a gas attack. Transmissions were also used by the Germans to guide the bombing runs of their infamous Zeppelins, and to communicate with tanks and aeroplanes.
In the final months of the war, as the deadlock on the Western Front was broken and the war became more mobile, radio played an important part in coordinating these new forces. In the twenty-first century, wars are fought through communications systems, with satellite-guided bombs and remote-controlled drones. The origins of this type of combat, which depends on instant telecommunication, can be found in the First World War.
Sources/further reading:
‘World War One: How radio crackled into life in conflict,’ BBC News
Thomas H. White, ‘United States Early Radio History: Radio during World War One’
C N Trueman, ‘First British Shots Of WWI’
‘Biography of Guglielmo Marconi’

Guarded by British troops, an arrested Irish republican is marched across a bridge following the Easter Rising in Dublin in April 1916.

Burning buildings in Sackville Street, Dublin (subsequently renamed O’Connell Street) which sustained severe damage during the Easter Rising. The General Post Office had been seized by Irish republicans. British forces bombarded it and set it on fire, forcing the republicans to relocate to Moore Street.