Why was zoroastrianism such an influential religon?

Zoroastrianism was very influential because of its noble characteristics as it was the first religion to developed the concept of messiah (first messiah was Zoroaster who claimed that he spoke to God), existence of Heaven, Hell, Judgment day, resurrection, eternal soul, coming Savior and angels. Zoroastrian teaching state that humans are fundamentally good, equal and free willed to make their own decision. Those will be accepted as fundament of Christianity, Islam and Judaism

Britain and its empire stood alone against hitler and mussolini. in june 1941, hitler broke the non-aggression agreement with stalin and germany invaded the soviet union. in december, japan attacked the us and britain. the main lines of world war ii had formed.