Answer:
Correct answer is by sending Soviet troops to Afghanistan.
Explanation:
Brezhnev doctrine was focused on the reaction of Soviet troops in the areas where the Socialism was endangered.
That is why the last option is correct as Soviets reacted with military assistance in Afghanistan.
All other options are not correct as they are showing the readiness of Soviet Union to lower the tension in certain period of crisis.
It should be the roman law or the federalist paper 10 but thomas jefferson said it and he got it from an italian friend so im pretty sure that it is a
Democracy is the belief that freedom shall be for all, and all people should hold a voice in government. It is a type of government.
Pretty sure it was the Soviet Union who claimed Ukraine, which is modern-day Russia i think.