Question

why us joined 2 world war ? how 2 world war came to an end ?

Answer 1

At that time we are under British rule. So they enforces us to join as their army.

2nd world war came to an with US entry in May,1945

Answer 2

Usa start to support the Britain but USA not involved in fighting with Germany in starting but soon the small country japan bombed the
Perl harbour which was the naval base and weapon storage island for USA. After bombing in the perl harbour USA entered to the world war 2 . And started to fight

World war 2 comes to end after the bombing on Hiroshima and Nagasaki. After bombing here Japan surrendered to USA and world war comes to end ....