America is pro-war and anti-war. Generally speaking, appeasement refers to the way the world treated Adolf Hitler and Germany in years prior to the onset of WWII, 1939. Recent Russian aggression into Georgia, Cremea, and Ukraine have brought this issue back to the forefront.
The Germans contravened the Treaty of Versailles, to re-militarize Germany's Ruhr Valley (1936) then annexed Austria (1938), and Czech (1938/1939). To the lesser extent, appeasement also refers to Japan's invasion of China in 1931 and Italy's invasion of Ethiopia in 1935. This led to WWII, destruction of cities, and restructing of countries.
War with Russia would require a mobilization of manpower this country has not seen before. Russia is still the world's second strongest military power. Russia killed 90% of Hitler's troops. The Russians fought two wars against the Japanese in WWII, winning both times. The last one was the August 1945 Soviet Invasion of Manchuria. It took 11 days and inflicted more than 724,000 casualties (killed, wounded, captured, missing) on the Japanese for 35,000 of their own; the Russians have lost their fair share of wars against Japan.
More enemy troops have died fighting Russia than any other nation. Concerning economics, a battery of executive orders, sanctions, and plunging oil prices have led to Russia ruble to drop more than 40% against the dollar, 15% inflation, a junk bond, and the real possibility of a Russian recession; the Cold War was won by economics, not war (Narayan Sengupta, Guest Columnist, The Marietta Journal, May 5, 2015).
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