Collection of facts about the Paraguayan War

This post is a collection of facts about the Paraguayan War (1864-1870). There are 6 facts listed below. Source: Wikipedia

• Paraguay vs. Argentina, Brazil, Uruguay
• Preceded by Uruguayan War and territorial disputes
• Paraguay conducted guerrilla warfare
• President Francisco Solano López killed in 1870
• Paraguay occupied by Argentina and Brazil until 1876
• 150,000 - 500,000 deaths