In the past six months people of Ukraine have shown to the world a great example of resilience, ingenuity, and bravery by successfully pushing back against the full-scale military invasion unleashed by Russia. With broad international support Ukraine is now set to take over the aggressor and regain its territorial integrity. But an even bigger non-military battle lies ahead for Ukraine – the battle for energy independence and long-term economic prosperity. Amory Bloch Lovins and Svitlana Romanko explain.