Explanation:
Soldiers of the Soviet Union and the United States did not do battle directly during the Cold War. But the two superpowers continually antagonized each other through political maneuvering, military coalitions, espionage, propaganda, arms buildups, economic aid, and proxy wars between other nations.
Is 3 the battle against the plague
<h3><em>People thought it was better because it was more easier to use, and people didn't want to waste their time having to use a system of communication using a Morse Code.</em></h3><h3><em /></h3><h3><em /></h3><h3><em /></h3>