Why Russia took Crimea first

Two years in to Russia's '10-day war'

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Life Inside Putin’s Crimea

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A Brief History Of Ukraine (And Why Russia Wants To Control It)

A History Of Crimea In Five Minutes

Why is Vladimir Putin so obsessed with Ukraine?

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World War 1 (All Parts)

Gravitas Plus: Did NATO push Ukraine into war?

Why Russia is Invading Ukraine

The end of a superpower - The collapse of the Soviet Union | DW Documentary

Tatar Nation: The Other Crimea

Trump will arm Ukraine with Tomahawk missiles if Putin doesn’t ‘play nice’

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Why I changed my mind about nuclear power | Michael Shellenberger | TEDxBerlin

America’s New Doomsday Weapon is Unstoppable

Ukraine war: 'This war could be ended in five minutes by Russia' - Poland's foreign minister

Why did Nikita Khrushchev Give Crimea to Ukraine?

Up and atom: can Trump stop Iranian nukes?