Today, we have a surprise for you: a free special edition podcast! Host Ed Leon talks about the crisis in Ukraine with Vejas Gabriel Liulevicius. Does this current crisis bear historical resemblance to earlier European foreign policy emergencies? In what way is this crisis a result of the collapse of Communism and the Soviet Union?

Four Thermodynamic Laws, Four-Year-Olds, and Our 24th Anniversary

The Great Courses brings engaging professors from the best universities to lifelong learners on audio and video. We create a "university of the best," working closely with our customers to design each Great Course. With this podcast hosted by Ed Leon, you'll meet our fascinating professors and experts who create The Great Courses, listen to their stories and insights, and learn more about the great work they are doing. Discover scientists explaining the latest findings from the fields of astronomy, particle physics, or neuroscience; historians exploring the implications of the latest archaeological findings; medical experts making sense of current health alerts or medical breakthroughs; and literature professors bringing fresh insights to classic literary works. This podcast is available in audio-only format. More information about our courses can be found at www.TheGreatCourses.com.