Along with China, a Vladimir Putin-led Russia also steadily increased its defence spending and continued to modernise its military capabilities throughout the decade, including the development of the T-14 Armata main battle tank and the fifth-generation Sukhoi Su-57 jet fighter. Russia also flexed its power projection capabilities, particularly demonstrated during the 2014 annexation of Crimea and its interventions in eastern Ukraine and the Syrian Civil War; Wagner Group had a significant presence in both conflicts. Russia also notably waged information warfare campaigns against its geopolitical foes, including interfering in the 2016 U.S. elections via hacking and leaking emails of U.S. political party leadership and by spreading disinformation via the Internet Research Agency. Other alleged Russian intelligence operations included the Skripal poisonings and the Montenegrin coup plot, both of which were attributed by some to the Unit 29155 organisation. Collectively, these activities—and the Western-led efforts to combat the influence of Russian oligarchs and political interests—have been referred to as the Second Cold War.