Find the missing sentence out of the options provided that fits to form a meaningful paragraph.
Russia fired at and captured three Ukrainian boats in the sea off Crimea on Sunday, sparking a major escalation of tensions between the neighboring countries._______________________________________. At the center of the dispute is the strategically important Sea of Azov, a body of water bordered by Ukraine, Crimea and Russia and connected to the Black Sea by a strait to the south.
The news revived memories of Russia’s 2014 annexation of Crimea, the Black Sea peninsula previously controlled by Ukraine, and raised further concerns over Russia’s territorial ambitions.
War in eastern Ukraine has continued ever since, leading to over 10,000 deaths and 1.7 million people being displaced.
And while NATO and western governments condemned Russia’s annexation of Crimea, they did little to stop it.
Russia said the Ukrainian boats were illegally trying to enter its waters; Ukraine said they were abiding by international maritime law and a 2003 treaty that states both the strait and the Sea of Azov are shared territorial waters.
None of the above