Times change. During those 70 years, Ukraine wants to move away from Russia as many others. Even when Russia agreed ( not verbally, but in writing) that Ukrain

Times change. During those 70 years, Ukraine wants to move away from Russia as many others. Even when Russia agreed ( not verbally, but in writing) that Ukraine was autonomous and after the Revolution of Dignity in 2013 ( https://en.wikipedia.org/wiki/Revolution_of_Dignity https://en.wikipedia.org/wiki/Revolution_of_Dignity ) it was clear that Russia has no more role to play in Ukraine. Russia didn't expect Democracy in Ukraine and doesn't like it. Additionally, Ukraine could block their naval fleet of going out. The defensive actions of the EU are justified, Russia has been testing war responses every year for many years. Through planes, fleet and even killing people in foreign countries ( widely documented). What they just now did, just proofs that improving defensive capabilities is the right call now and will be so in the future.