Which theater of World War II would be considered a "war of distance?"

The Pacific War was more of a "war of distance" than the European Theater of World War II.  This is true because of the Pacific Ocean.  This vast ocean separated the United States from Japan in such a way that much of the fighting took place on the open seas.  Hawaii is over 4,000 miles from Japan.  Guam, an American colony, was over 2,500 miles from mainland Japan. The Pacific War was fought over the ocean with engagements on strategic islands in which airstrips could be constructed.  Only late in the war did the United States approach mainland Japan.

The European Theater of the war was much smaller in scope.  The distance between London and Berlin is merely 678 miles.  Ground forces were much more important to the movement on the European front in World War II. Even the fighting in North Africa was a short distance to the enemies in Italy (just over 600 miles.)  When the Allied forces finally crossed the English Channel in 1944 to meet German forces in France, the distance was less than 200 miles.