Apparently, a lot! Building a bridge between Ukraine and Russia has been attempted several times. The first time, World War I came along and stopped progress. The second time? World War II messed up the plans. Later, Russian leader Joseph Stalin finally got the bridge built, but it collapsed a few months later. Since then, people had been using ferries to go between Ukraine and Russia, but in 2014, the region of Crimea (which was part of Ukraine) was annexed (or taken over) by Russia, renewing plans to build the bridge. This week, the twelve-mile-long bridge finally opened, making it the longest bridge in Europe.
As with many things though, there are two sides to this bridge story. Many people who struggled with traffic are happy with the bridge. Some world leaders, on the other hand, are not so happy because Ukraine and other foreign governments still consider Crimea a part of Ukrainian territory, which means the bridge is possibly in violation of international law.