Peru was heavily indebted, and political in-fighting was again on the rise. Peru embarked on a railroad-building program that helped but also bankrupted the country. In 1879, Peru entered the War of the Pacific which lasted until 1884. Bolivia invoked its alliance with Peru against Chile. The Peruvian Government tried to mediate the dispute by sending a diplomatic team to negotiate with the Chilean government, but the committee concluded that war was inevitable. Chile declared war on 5 April 1879. Almost five years of war ended with the loss of the department of Tarapacá and the provinces of Tacna and Arica,
Tertiary Hill Country Tertiary Hill Country The Tertiary Hill Country ( or "Tertiäres Hügelland"), also called the Tertiary Hills, is an upland area with a moderate climate in the northern Alpine Foreland, which extends northwards as far as the River Danube. It is divided into two simple contiguous regions that are separated by the valley of the Lower Inn which itself is not usually counted as part of the Tertiary Hills. In Germany (Bavaria), the Lower Bavarian Upland is its larger northwestern element; in Upper Austria it forms the Hausruckviertl Mountain and Hill Country (also called the Upper Austrian Hill Country or "Oberösterreichisches