Viktor Yushchenko, the pro-Western opposition leader, faced off against Viktor Yanukovych, the Russian-backed Prime Minister, in the final run-off election in Ukraine. The world watched intently as allegations of fraud and corruption marred the initial vote, sparking widespread protests and calls for a re-vote. Under intense international pressure, Ukraine held a second ballot, which Yushchenko won convincingly. This marked a pivotal moment in Ukraine's transition towards democracy and closer ties with Europe.