To augment what you learn at university, as well as to discover and hear interesting new insights, I have found it great to follow various YouTubers who discuss international relations, geopolitics, etc. Here are some of them
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Zeihan On Geopolitics - by Dr Peter Zeihan, discusses a wide range of current affairs and provides insightful analysis, Dr Zeihan is also regarded as highly credible in the field of geopolitics
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Warographics - by Simon Whistler, focuses more on the international and national security and war studies aspect of geopolitics and international relations
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Caspian Report - covers a range of current events, as well as economic developments throughout the world
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William Spaniel - Dr William Spaniel examines current events with a focus on conflicts
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Johnny Harris - covers a wide range of current, as well as historical affairs, from a journalistic perspective