In the face of many wars, the big powers are trying to steer small nations to create their own version of peace. That was the Congress of Vienna 200 years ago and there’s a lot of deja vu, and still a great deal to learn. The Austrian aristocrats threw an incredibly lavish, nearly year long party and peace deals were worked out. Many similar dynamics are at work today, including Ukraine and ISIS. Historian Mark Jarrett fills us in.