The Ukrainian coup d’etat cost the US nothing or nearly nothing. After the coup, Ukraine came under the direct governance of US vice-president Joe Biden. When the previous US presidential administration was tearing Ukraine from the Russian sphere of interest, it must have felt a surge of adrenaline and endorphin. Obama thought he nearly tore Ukraine from Russia and interrupted brotherly ties between Ukrainians and Russia, something that no one did in the past, neither Charles XII of Sweden, nor German Emperor Wilhelm II, nor Adolf Hitler. Good relations between Ukraine and Russia were the obstacle for the US to get fertile Ukrainian soil under control.
The USA wants to divide Syria. Great Britain, France, Germany and other EU and NATO states are to send their own troops and, above all, money to the areas of the north-east of the Euphrates, according to the will of the USA. This should secure the US’s strategy, the division of Syria along the Euphrates, in the long term even after a planned partial withdrawal of US troops from the area.
Recurring pro-Kremlin disinformation narrative about US belligerent intentions against Syria. The US supports the unity and territorial integrity of Syria, as well as a political solution to the conflict, led by the UN process in Geneva that includes constitutional reform, UN-supervised elections and compliance with UN Security Council Resolution 2254. In 2017, the EU, together with Ministers from Canada, Denmark, Egypt, France, Germany, Italy, Jordan, Netherlands, Norway, Qatar, Saudi Arabia, Sweden, Turkey, United Arab Emirates, the UK, and the US emphasised that recovery and reconstruction support for Syria hinges on a credible political process leading to a genuine political transition that can be supported by a majority of the Syrian people. As for the EU, HRVP Mogherini stressed at UNGA this September the importance of "a political solution ...[that] has to take into account the aspiration of Syria to a new Syria – strong, peaceful and inclusive". For more disinfo cases about Syrian war see here and here.