papermaking, gunpowder, compass.
Answer: While PMCs often provide services to train or supplement official armed forces in service of governments, they can also be employed by private companies to provide bodyguards for key staff or protection of company premises, especially in hostile territories.
Explanation:
The best and correct option is D
<span> to avoid potential conflict caused by Mexico
the USA knew the likelihood of war was in the air as Texas was a territory of the republic of Mexico. however, and in addition, there were elements within Texas itself who were opposed to the take over of the states and therefore tensions remained high.
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C. Mesopotamia was located in modern-day China.