Pax Russica means "Russian Peace," which is a term that describes the time of peace, stability, and power that Russia had during the rule of Alexander III and Nicholas II in the late 19th and early 20th centuries. During this time, Russia was a big and strong country with a lot of resources like oil, gas, and land. Many people were happy and their lives improved under this peace and order, as there was no war or unrest. However, sometimes Russia used its power to control its neighbors or crush any uprisings or protests within its own borders. This caused some problems, but overall this time was seen as a positive period for Russia.