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.
The main axis powers in World War II were Germany, Japan and  Italy. The Axis Alliance, which existed from 1936 to 1945, was the  result of the Tripartite Pact.apan was a member of the Axis, and thus an ally of Germany. The Allies (especially Britain, during the Battle of Britain), proved that they weren't going to let Hitler achieve his plans.