Like many other upper respiratory diseases, diphtheria is most likely to break out during the winter months. At one time it was a major childhood killer, but in the early 2000s it is rare in developed countries because of widespread immunization.
Italy joined the Pact in 1937. The RomeâBerlin Axis became a military alliance in 1939 under the so-called  Pact of Steel , with the Tripartite Pact of 1940 leading to the integration of the military aims of Germany and its two treaty-bound allies.he RomeâBerlin Axis became a military alliance in 1939 under the so-called  Pact of Steel , with the Tripartite Pact of 1940 leading to the integration of the military aims of Germany and its two treaty-bound allies.
Countries such as Italy which later left the Axis powers and joined the Allies are not considered Allied states. States that Allied Themselves with the Axis Powers: The Axis powers were officially founded by the Tripartite Pact signed between the Nazi Germany, Italy and Japan on September 27, 1940.reat Britain: Viewed Germany as an impending military threat and declared war on them. Great Britain was bombed heavily throughout the war. United States: One of the most influential countries in the war and became involved only after japan attacked pearl harbor.