What does the phrase"impose duties" refer to?

Imposed duties are duties, the burden of which is imposed upon a person. They are those duties of a municipal corporation which are superadded to merely governmental functions, like the special private corporate duty to maintain streets in a safe condition for public travel, or the special, private corporate duty to maintain and manage corporate property so that city employees shall have safe places in which to work.

“the battle of stalingrad is not a turning point necessarily in strategic terms, because a lot more has to be done before the soviets can be certain of defeating germany,” says renowned world war ii historian richard overy. the germans had fought nearly a thousand miles across the soviet union to get to stalingrad.

- "it was a failure that was an embarrassment for the kennedy administration."

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