Who started world war 1 and 2

world war 1 started by franz Ferdinand who was the archduke of Austria was assassinated by a Serbians gang member of the black hand.So the countries were being allied and Britain,and France wanted to support Russia go to war.Germany wanted to support Austria-Hungary.and Russia wanted to help Serbia go to war and they did.

Second World War :

And then in around 1939 hitler invaded Poland

From the west, then 2 days later France and Britain was declaring war on Germany.And finally in 1945 in September the war ended and Germany lost like nearly 600k soldiers in war and Germany lost because of the Soviet Union.So Britain did win the war

Explanation:

your answer is

relations between the soviet union and the united states were driven by a complex interplay of ideological, political, and economic factors, which led to shifts between cautious cooperation and often bitter superpower rivalry over the years. the distinct differences in the political systems of the two countries often prevented them from reaching a mutual understanding on key policy issues and even, as in the case of the cuban missile crisis, brought them to the brink of war.

the united states government was initially hostile to the soviet leaders for taking russia out of world war i and was opposed to a state ideologically based on communism. although the united states embarked on a famine relief program in the soviet union in the early 1920s and american businessmen established commercial ties there during the period of the new economic policy (1921–29), the two countries did not establish diplomatic relations until 1933. by that time, the totalitarian nature of joseph stalin's regime presented an insurmountable obstacle to friendly relations with the west. although world war ii brought the two countries into alliance, based on the common aim of defeating nazi germany, the soviet union's aggressive, antidemocratic policy toward eastern europe had created tensions even before the war ended.

the roman army grew in size and became dominant in the mediterranean region.