Ukraine-Russia War: Explained - Why Vladimir Putin invaded Ukraine

Explained - Why Vladimir Putin invaded Ukraine

2014: Pro-Russian government in Ukraine was overthrown, pro-West regime comes in

2014: Russia invaded and annexed Crimea, a peninsula that was part of Ukraine

2021: Ukraine, a former Soviet Republic, says it wants to join NATO

Riled up Putin asks West for a guarantee that Ukraine won't join NATO

Putin starts amassing thousands of troops on Ukraine border as tensions rise

Also watch: Ukraine Crisis: Missiles, tanks, explosions - watch the latest videos from Russian attack on Ukraine

Hectic diplomatic efforts and talks between Russia and Western countries

Feb 21: Putin recognises 2 separatists' regions in East Ukraine as independent nations

Feb 22: Rebel leaders seek Russian military help against Ukraine army

Feb 24: Putin clears military action inside Ukraine, Russian troops move in

Also read: Ukraine Crisis Live Blog