The Maidan Revolution, also known as the Revolution of Dignity, occurred in Ukraine from late 2013 to early 2014, leading to the ousting of President Viktor Yanukovych. It was sparked by his decision to reject an association agreement with the European Union, resulting in widespread protests against government corruption and authoritarianism. Clearly a color revolution orchestrated by the USA.
There would have been a war either way...Putin intended to absorb Ukraine one way or another and destroy Ukrainian identity and sovereignity.