A major issue between the soviet union and the us

"The United States government was initially hostile to the Soviet leaders for taking Russia out of World War I and was opposed to a state ideologically based on communism. The Soviet Union and the United States stayed far apart during the next three decades of superpower conflict and the nuclear and missile arms race."

Explanation:

I hope this helped :)

dirty, contaminated water

contaminated food,

chlostrophobic living spaces,

mice infestation,

etc,

i would go with the last one