The severing of electricity ties to Russia is rich in geopolitical significance. Work on it sped up after Russian President Vladimir Putin ordered the invasion of Ukraine.
Prime Minister Kaja Kallas has led the former Soviet republic since 2021. She's an outspoken critic of Russian President Vladimir Putin, and a vocal supporter of Ukraine.
Estonia is host to one of the world's largest annual interactive cybersecurity drills. Russia is always considered the main threat, but this year, the war in Ukraine has only added to the stakes.