When in ww1 did they use Morse code?

During World War I, Morse Code was widely used for military communication from the war's onset in 1914 until its conclusion in 1918. It facilitated quick and efficient transmission of messages over telegraph lines and radio, allowing for coordination of troop movements and strategic operations. The technology was particularly valuable in the trenches and on ships, where reliable communication was crucial. Morse code remained a key tool for military communications throughout the war.