If Russia wages all-out war, non-NATO member Ukraine is on its own

This video grab taken from footage of local media Kerch Info on Nov. 25, 2018 shows Russian aircraft flying over the Crimean Bridge that spans the Kerch Strait, a narrow strip that links the Azov and Black seas, as a Russian ship blocks the strait, after Russia fired on and then seized three Ukrainian ships on Nov. 25, accusing them of illegally entering its waters in the Sea of Azov.

Photo by AFP