Russian annexation of Crimea
When Russia forcibly annexed Ukraine's Crimean Peninsula in 2014, their actions were strongly denounced by many nations, especially the by the U.S. and European Union. America refused to recognize the Kremlin's sovereign claim over Crimea and even imposed sanctions on Russia (like many other Western nations) to match their strong condemnation of Russia's illegal actions. This Russian annexation of Crimea and the U.S. sanctions that resulted from such an action, both actively contributed to a more unwelcoming relationship between these two nations. Their increasingly chilly relations over international and financial issues connected to this Crimea annexation only works to resurge Cold War relations.
The Russian annexation of Crimea reflects the continuation of the Cold War today. The argument that the annexation of Crimea by Russia in 2014 assumes that the behaviors from before, during, and after the crisis performed by the United States and Russia reflects their behaviors from the Cold War of the twentieth century. The already chilled tensions before this international dilemma paired with how Crimean annexation played out confirms that the Cold War never really ended and instead reflects a continuation of it. The decision of the United States and Western Europe to respond by imposing economic sanctions on Russia and providing financial and military support to Ukrainians is reminiscent of earlier Cold War tactics.  Use of these tactics suggest then that the Cold War never ended at all, and instead continues today. Language used by the press emphasized this comparison, with claims that a threat to the “free world” has returned as well as other communist versus capitalist language. 
The counterargument to this assertion is that the Cold War decidedly lasted from 1945 through 1991, decidedly ending in 1991 with the end of the Soviet Union. As such, it is impossible for the Cold War to continue today as Russia is a different nation and the geopolitical concerns of the world are decidedly different. As such, the Russian annexation of Crimea might be a demonstration of rising tensions between the U.S. and Russia, but it is not a continuation of the Cold War.
Rejecting the premises