That is a pretty broad thing. There is a changing of the guard at Arlington national cemetery and other memorial places across the country. They also do it in England at some of there important and historical sites. It usually refers to a event that happens when the Soldiers who have been stationed at one of these sights are rotated out in a very ceremonial manner. There are plenty of examples on youtube that you can look up.
Answer:
B) India
Explanation:
India contributed the largest number of men during World War One, with approximately 1.5 million recruited during the war up to December 1919. The dominions – including Canada, South Africa, Australia, New Zealand, and Newfoundland – contributed a further 1.3 million men. India is one of the most populous countries in the world, with a population of around a million people.
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1800s
December 2,1804 to be exact