Here's how we can approach it:
* Non-aligned countries were nations that did not formally align with either the United States or the Soviet Union during the Cold War.
* Bodies of water are large expanses of water like oceans, seas, lakes, and rivers.
To answer the question, we need to find a body of water where all bordering countries were aligned with either the US or the USSR.
Here's a likely answer:
The Baltic Sea during the Cold War era would be a strong contender.
* Soviet Union: Bordered the Baltic Sea directly.
* East Germany: Part of the Soviet Bloc.
* Poland: Part of the Soviet Bloc.
* Finland: While officially non-aligned, Finland had a close relationship with the Soviet Union and was heavily influenced by it.
* Sweden: Officially non-aligned but leaned towards the West during the Cold War.
* Denmark: Part of NATO (US-led alliance).
Therefore, the Baltic Sea during the Cold War was likely the body of water where all bordering countries were aligned with either the US or the USSR, even if indirectly in some cases.
Important Note: It's worth noting that defining a country's alignment during the Cold War can be complex, and there might be historical arguments for alternative answers.
