Editor's Note:

The conflict between Russia and Ukraine has entered its seventh day. The crisis was caused by complicated reasons, including the North Atlantic Treaty Organization's (NATO) aggressive expansions in past decades that caused concrete security threats to Russia and other non-NATO countries in the region. 

The conflict proves that NATO's expansion and the US military presence have failed to make Europe more secure but instead made it more dangerous. Let's check how NATO is expanding, threatening Russia and other non-NATO counrtries.

Aggressive expansion Graphic: GT