Why did the Mughal Empire nearly come to an early
end under Humayan?

Under Aurangzeb, the Mughal empire reached the peak of its military power, but the rule was unstable. This was partly because of the hostility that Aurangazeb's intolerance and taxation inspired in the population, but also because the empire had simply become to big to be successfully governed.

each played a major role in ending the cold war.

where is the subject? hahahaha