On 23 August 1989, approximately two million people across Estonia, Latvia, and Lithuania formed a massive human chain. Stretching 675 kilometres from Tallinn to Vilnius, this peaceful protest stood against the illegal Soviet occupation. The event, known as the Baltic Way, aimed to alert the global community to the Molotov-Ribbentrop Pact. This secret treaty had been signed 50 years earlier between the Soviet Union and Nazi Germany. The pact illegally divided several nations into spheres of influence, violating international law. This diplomatic agreement eventually paved the way for the start of the Second World War. The human chain remains one of the longest unbroken chains in history.