alternatehistory.com

In 1961, a range of world powers signed the Antarctic Treaty, regulating international relations in regards to the continent and banning all military activity. Since the treaty's inception, 46 countries are now signatories.

WI the Treaty was never signed, or it was signed with significantly different content? Could we see a greater importance of the southern hemisphere during the Cold War, or more international conflict between nations over who controls the continent? I'm particularly interested in the POD of not having a military restriction on Antarctica, but any other ideas are still welcome.
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