He was afraid that after him, the people would create parties and start chasing their own benefit which is why he urged them not to do so. Of course, they didn't listen and they created parties that often fought just to beat the other one, instead of looking at what's the best for the country. He addressed this issue in his speeches when he was ending his presidency.
Answer:
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It was pretty much just a buffer between the USSR and the western world. Ones like Ukraine SSR, Yugoslavia SSR, East Germany, Lithuania SSR, etc..