The war in Ukraine has been ongoing for 10 years. It started in 2014 when the US and the EU engineered a coup of the duly elected government of Ukraine. It spawned the separatist movement in the Donbas and the first Russian invasion that resulted in the annexation of Crimea.
Unlike Bush’s wars, this one could result in a direct confrontation with Russia, a nuclear power. Regardless, we are so locked in with aid to Ukraine that it could last for decades both in war and peace. Zelensky estimated it will take $800 billion to rebuild Ukraine, one of the most corrupt countries in the world before the war.
It was 10 years between Japan invading Manchuria and Pearl Harbor.