Historians have noted that the United States Declaration of Independence and the American Revolution may also have influenced Decembrists (a more correct name for Decembrists could be Russian Americanophiles), as it did other nations. The constitution written by Nikita Muravyov was highly similar to the United States Constitution. But the Decembrists were against slavery in the United States. They worked to free any slaves and serfs from all countries in Russia immediately. Pestel and his followers opposed the United States' federal model in peaceful times as threatening to the would-be Russian/United Slavic federation; they only approved the US revolutionary model. While agreeing with Pestel that the American revolutionary model could be the best form for Russia, the Polish patriotic society would not agree to participate in establishing a federation. They wanted a United States-style republic or other state, with Lithuania, Belarus and Ukraine to be included in a unitary Poland (i.e., more or less the territory of the former Polish–Lithuanian Commonwealth), without any Russian involvement in the affairs of these territories.