As Russia prepared to invade Ukraine, we took a look at the history of the complex relationship between the nations.

President Trump and Ukrainian President Zelenskyy argued in the Oval Office in a stunning public display of devolving relations. Geoff Bennett discussed the developments with Timothy Snyder, one of the country's leading historians of Eastern Europe and the former Soviet Union who has written widely on Ukraine,

A submarine base in Balaklava was once a Soviet secret, then it reopened as a tourist museum. Now, observers claim the base is being revived once more for warfighting Russian vessels.

It’s been three years of war between Ukraine and Russia, but peace may still be far off and Trump entering the fray could be bad for Ukraine.

Russia signed at least five treaties guaranteeing Ukraine’s sovereignty and territorial integrity. Russian annexation of Ukrainian regions violates these agreements. It is also illegal under international law,