The Russia-Ukraine clash

Ukraine will continue to be an uncertainty affecting relations between Russia and Europe, with the dispute at the Strait of Kerch has extending into 2019.

Russia and Ukraine engaged in disputes at the Black Sea in late 2018, and their treaty of friendship has been suspended. US president Trump meanwhile postponed his meeting with Putin, and the EU intended to extend sanctions on Russia.

The conflict between Russia and Ukraine is now considered a strategic focus for many western countries.