History of the Ecuadorian–Peruvian territorial dispute of the many treaties signed between "Colombia" and Peru before 1830. In Peru, the dissolution of Gran Colombia is seen as a country ceasing to exist, giving way to the formation of new nation states that had nothing to do with the original federation. The significant implication of this view is that the treaties Peru had signed with Gran Colombia were voided, as the country in question no longer existed, and was replaced with three new states, the Republic of New Granada (which subsequently changed its name to Republic of Colombia), the Republic of Venezuela and the Republic of Ecuador.
Autonomous Republic of Crimea and Ukraine became an independent country, Crimea remained part of the newly independent Ukraine. However, in March 2014, following the Ukrainian revolution that ousted the Ukrainian President, Viktor Yanukovych, pro-Russian separatists and Russian Armed Forces took over the territory. A controversial Crimea-wide referendum, unconstitutional under the Ukrainian and Crimean constitutions, was held on the issue of reunification with Russia which official results indicated was supported by a large majority of Crimeans. Crimea was then annexed by Russia to incorporate the Republic of Crimea and the federal city of Sevastopol as federal subjects of Russia. While Russia and ten other UN