Ap world history question-

in what historical event in period 4 (1900-present) do you think britain will need new zealand?

Britain needed New Zealand to defeat Germany in 1918.

Explanation:

In the war that was started in late 1918, British Empire's war effort was highly aided by New Zealand that eventually led British to win against the troops of Germany and its allies. This was held some major affect on the arrangement of constitutional affairs of British Empire and the status of New Zealand in global scenario.New Zealand was became an independent country in 1948, before it was ruled by British government.