Russias military
Russian, Japanese leaders express new resolve to settle island row
Japan claims a string of Russia-controlled western Pacific islands, called the Northern Territories in Japan.
Russian air power had helped Syrian President Bashar al-Assad make steady advances against the rebels.
One of the US goals in Syria have been ending the violence that already has claimed some 400,000 lives.
Washington has consistently refused to join forces with Russia in Syria against the Islamic State.
A senior UN diplomat said that Europeans tend to be pretty sceptical about the US-Russia bilateralism.
The intentions of Moscow's latest deployment of heavy military equipment remaind unclear.
Moscow has warned Denmark not to join NATO missile defence system if it doesn’t want trouble.
Fighting has intensified since the shooting down of a Malaysian airliner last month.
Dozens of Russians linked to Russia's gradual takeover of Crimea could face US and EU travel bans.
More violence has erupted in Russia's Northern Caucas region between Islamists and Russian forces.