On June 26, 1914, Europe was at war. With its ultimatum not heeded to its satisfaction, Austria declared war on Serbia and its army began marching on Belgrade. The Serbian capital, which the government had deemed indefensible, had been evacuated. King Peter of Serbia had instead shifted the seat of government 60 miles to the south to the mountain town of Kraguyevats. Within days, Russia, Germany, Britain, and France would join the war.