The Kerch Strait links the Sea of Azov with the Black Sea.  Its troubled waters flow past Crimea.  In 2014, Russia seized Crimea from Ukraine.  Then it sent soldiers into Eastern Ukraine.  Recent events in the Kerch Strait are turning an on-going international affront into a crisis.  As the US Navy prepares to sail into the region Nasha Kasha explores the facts and emotions surrounding this story.