Is Eastern Europe entering a new Cold War?

Since the Russian invasion of Crimea in 2014, the Baltic states – Estonia, Lithuania and Latvia – and Poland have expressed concerns about a potential Russian threat to their sovereignty. NATO has, subsequently, sought to reassure those member countries that it would protect them in the event of an attack.

Both NATO and Russia have stepped up their military exercises in the region and NATO is expected to confirm the final details of a deployment of four multi-national battalions in the Baltic states and Poland during its Warsaw Summit this weekend.

In February, the Russian prime minister, Dmitry Medvedev, told the Munich Security Conference: "One could go as far as to say that we have slid back to a new Cold War."

But just how serious are the threats? Is conflict really looming?

Al Jazeera asked experts for their opinions, reviewed past statements by leaders of each country and examined what growing tensions look like on the map of Eastern Europe.

To read more about the potential threat Russia might be to the Baltic states, click here.