In 2014, following Russia's annexation of Crimea and the outbreak of the [[Donbas war]], Ukraine intensified its military cooperation with NATO and the U.S. European Command (USEUCOM). Several key exercises were conducted to enhance interoperability and strengthen Ukraine’s defense capabilities. | In 2014, following Russia's annexation of Crimea and the outbreak of the [[Donbas war]], Ukraine intensified its military cooperation with NATO and the U.S. European Command (USEUCOM). Several key exercises were conducted to enhance interoperability and strengthen Ukraine’s defense capabilities. |