Ukraine: A history in pictures June 24, 2012 -- Updated 1226 GMT (2026 HKT) Ukraine achieved independence following the collapse of the Soviet Union in 1991. Europe's second largest country, it boasts sweeping and fertile agricultural plains as well areas of heavy industry. Ukraine suffered the world's worst nuclear power plant accident in 1986 when a reactor at the Chernobyl power station exploded. A United Nations report from 2005 estimates that 200,000 people have been severely affected by the disaster, including up to 4,000 deaths. Recently the site has become a tourist attraction. Following independence the Ukrainian government liberalized consumer prices and created a legal framework for privatization. However far-reaching opposition to reform within the government soon stalled many of these efforts. By 1999 output had fallen to less than 40% of the 1991 level, according to WTO statistics. A peaceful, mass protest known as the Orange Revolution broke out in 2004 after questions were raised about the recent presidential election. It led to the result being overturned and in the subsequent internationally-monitored election, Viktor Yushchenko was declared the winner. In 2010 Viktor Yanukovych - Yushchenko's rival in 2004 - was elected president. Ukraine is the co-host of Euro 2012, the largest international sporting event to take place in the country. Pictured: Andriy Shevchenko of Ukraine reacts to scoring the team's second goal during the Group D match against Sweden in Kiev, Ukraine, on Monday, June 11. Ukraine: The land Brutal moments in history Nuclear catastrophe Independence from the Soviet Union Liberalization and hardship Orange revolution Industrial revival Global economic crisis Heritage and history Bread and welcome Opposition and controversy