“Utter bulls#it. Crimea was annexed with a phone call: Take down one flag and put up the other.”
Incorrect.
“In February and March 2014, Russia invaded and subsequently annexed the Crimean Peninsula from Ukraine...
... On 23 February, pro-Russian demonstrations were held in the Crimean city of Sevastopol. On 27 February, masked Russian troops without insignia[41] took over the Supreme Council (parliament) of Crimea[42][43] and captured strategic sites across Crimea. This led to the installation of the pro-Russian Sergey Aksyonov government in Crimea, the conducting of the Crimean status referendum and the declaration of Crimea’s independence on 16 March 2014.[44][45] Russia formally incorporated Crimea as two Russian federal subjects—the Republic of Crimea and the federal city of Sevastopol on 18 March 2014.[46][47][note 2] Following the annexation, Russia escalated military presence on the peninsula and leveraged nuclear threats to solidify the new status quo on the ground.[49]”
If you are using Wikipedia you get an automatic F grade. Not even in liberal colleges is Wikipedia allowed to be cited as a reference.