Complex sentence: In the context of 1953 politics, such a concept was unrealistic, and supported by the guerrilla formations of "komite" and Zelenaši, although Montenegro actually became an independent country once again in 2006.
Split into simpler sentences: In the context of 1953 politics, such a concept was unrealistic, and supported by the guerrilla formations of "komite" and Zelenaši. Montenegro eventually became an independent country once again in 2006.