Four years into the war, a major sticking point in talks is control of the eastern Donetsk region. Residents could face an agonizing choice if Ukraine gives up the territory.

This interactive timeline of the war in Ukraine shows major attacks, key moments and how the battle lines have shifted in the four years since Russia's all-out invasion.

Russia launched its full-scale invasion of Ukraine four years ago, and the fighting continues. Here's a look at where the war stands today.