Thirty years ago, Germany put forth a theory for how to work with Russia. Major energy deals, leaders argued, would keep Russia from going to war with its neighbors.Over the past 20 years, Germany has made itself incredibly dependent on Russian gas. The war in Ukraine has complicated that relationship and has shown how Germany’s approach to Russia has not only failed, but also backfired.Guest: Katrin Bennhold, the Berlin bureau chief for The New York Times.Want more from The Daily? For one big idea on the news each week from our team, subscribe to our newsletter. Background reading: Germany, dependent on Russian gas, has so far refused to cut off President Vladimir V. Putin, whose war it is effectively subsidizing to the tune of some $220 million in energy payments a day.Under increasing pressure to sever the country’s reliance on Russian energy, German officials must contend with deeply rooted economic ties. For more information on today’s episode, visit nytimes.com/thedaily. Transcripts of each episode will be made available by the next workday.