Two main reasons. First, a warship with radar had a great advantage over an enemy warship without radar, especially at night or in weather conditions which reduced visibility. Even in clear weather, radar allowed a ship to see targets beyond the horizon. Second, ground-based radar gave much more advanced warning of attack by enemy planes, allowing fighters to meet them at a given point instead of wasting fuel searching for them.
World War II
Code breaking was a significant part of World War II because it helped the Allies win over the Axis.
The most significant cause of World War II was the aggressive expansionist policies of Nazi Germany under Adolf Hitler, which sought to dominate Europe and establish a totalitarian regime.
This timeline for the events that occurred with the Nazis and the Allies came from Wikipedia under the heading of World War 2. You can click on each month to get full details for each month of 1941.timeline of events that stretched over the period ofworld-war-ii.Contents[hide]timeline-of-world-war-ii-1941timeline-of-world-war-ii-1941timeline-of-world-war-ii-1941timeline-of-world-war-ii-1941timeline-of-world-war-ii-1941timeline-of-world-war-ii-1941timeline-of-world-war-ii-1941timeline-of-world-war-ii-1941timeline-of-world-war-ii-1941timeline-of-world-war-ii-1941timeline-of-world-war-ii-1941timeline-of-world-war-ii-1941timeline-of-world-war-ii-1941timeline-of-world-war-ii-1941
World War I and World War II both started in Europe.World War I and World War II both started in Europe.World War I and World War II both started in Europe.World War I and World War II both started in Europe.World War I and World War II both started in Europe.World War I and World War II both started in Europe.World War I and World War II both started in Europe.World War I and World War II both started in Europe.World War I and World War II both started in Europe.World War I and World War II both started in Europe.World War I and World War II both started in Europe.
There were no Winter Olympics in 1944 due to World War II.
World War I, World War II, and the Cold War
I, II, III, and V
There is no Civil War II. There is a World War II
There was no Olympics in 1940 due to World War II. There was no Olympics in 1944 due to World War II. Also, there was no Olympics in 1916 due to World War I.
World War II
The significant civil war that happened just before WW II was the Spanish Civil War.