The main reason why United States was involved in Vietnam is that the United States believed in the so called Domino effect: that if one country becomes communist, others might become communist too. So they got involved to stop the spread of communism (option a)
Answer:
Mandate of heaven
Explanation:
The Japanese rejected several Chinese practices. For example, the Japanese never adopted the Chinese idea of the Mandate of Heaven or the belief that the gods chose the emperor but could also remove a corrupt emperor.
According to research, OPSEC countermeasures are planned actions to affect collection, analysis, delivery.
<h3>What is OPSEC?</h3>
It is a security and risk management strategy and process that classifies information and then determines what is required to protect sensitive information.
Applying the appropriate countermeasures is the last step in implementing an OPSEC plan that will reduce risks consisting of planned actions to affect collection, analysis, delivery.
Therefore, we can conclude that according to research, OPSEC countermeasures are planned actions to affect collection, analysis, delivery.
Learn more about OPSEC countermeasures here: brainly.com/question/17437694
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A. Gold Nugget, gold hasn't been used since secretary of treasury Alexander Hamilton made a more reliable currency known as the US. Dollar. Other places soon caught on and began using paper money
