Why were the soviets halting all food supplies that were being sent by other countries at the border?

the official policy of the Soviet Union was to deny the existence of a famine and thus to refuse any outside assistance. Anyone claiming that there was in fact a famine was accused of spreading anti-Soviet propaganda.

Explanation:

Your welcome bro

jewish people sniffed up all of the money, thus making it hard for society

geography

this is because warmer climates often don't get people sick from the flu and regions where it was often colder more people received the flu. hope this if you need more reasoning i am here to