A David-and-Goliath contest is being played out in Black Sea peninsula
Despite Russia's superior manpower, experts say morale remains high in Ukraine's armed forces

Ukraine has placed its army on full combat alert, but with ageing equipment and limited personnel, it remains cautiously defensive in the face of an incursion by Russian forces.
Since the Russian parliament gave the green light on Saturday for its armed forces to intervene in Ukraine, thousands of soldiers have been flexing their muscles in Crimea. Their uniforms might be stripped of identification, but they are widely believed to be acting under Kremlin orders.
They have effectively taken control of the most strategic centres of the Black Sea peninsula, blocking the roughly 15,000 Ukrainian soldiers stationed there in their barracks, and seizing key government buildings and airports.
Watch: Ukraine mobilises army after Russia's threat to invade