Ukraine's ongoing struggle against Russian aggression.

The strategic rail hub of Kupyansk in Ukraine's Kharkiv region, which has been occupied by Russian forces for about seven months, is now facing the threat of a new Russian occupation. The town's mayor is defiant, but Russian forces have advanced to within six miles of the town, lying in wait just over the eastern horizon. Kupyansk has great rail links that connect Russia and Ukraine, making it a vital logistics hub for Putin's troops to push further west into Ukraine. The town's residents fear that if Russia moves to retake Kupyansk, it will be another bloody battle in a war that has already cost well over 100,000 lives.