and Uruguay). It will kill almost 60% of the country's population. The main phase of the New Zealand Wars between British colonials and the Māori population begins with the First Taranaki War in 1860. The most significant campaign is the Invasion of the Waikato in 1863, which sees some 14,000 British and colonial troops engaged. The Kingdom of Prussia under Bismarck invaded Denmark in 1864, which ended in the division of Schleswig, the location of a pro-German revolt, between Prussia and the Austrian Empire. Though Prussia and Austria had both fought side by side in this war, Prussia later attacked Austria in the Austro-Prussian war of 1866. The technological and logistical superiority of Prussia's armed forces obliterated Austria and its allies, the former also having to deal with Prussia's ally Italy in Venice. By the end of these conflicts, Prussia was seen as the most powerful state in Germany, and had total hegemony over the other German states. The NGF was formed after the Austro-Prussian war, uniting the states of north Germany, and Prussia soon led it into another conflict with France. The Bhutan War between the British Empire and Bhutan lasted from 1864 to 1865. It ended in a British victory and the loss of some Bhutanese territory to British India. The British Expedition to Abyssinia was a rescue mission and punitive expedition carried out in 1868 by the armed forces of the British Empire against the Ethiopian Empire. Conclusion of the Russo-Circassian War (1763–1864) resulting in Russian victory and subsequent Circassian genocide and diaspora. Internal conflicts The Federal War was a civil war (1859–1863) in Venezuela between the Conservative party and the Liberal party over the monopoly the Conservatives held over government positions and land ownership, and their intransigence to granting any reforms. It was the biggest and bloodiest civil war that Venezuela had since its independence. Hundreds of thousands died in the violence of the war, or from hunger or disease, in a country with a population of just over a million people American Civil War fought between the remaining United States of America under President Abraham Lincoln and the self-declared Confederate States of America under President Jefferson Davis (April 12, 1861 – April 9, 1865) and Vice President Alexander Stephens. Beginning of the Reconstruction era under President Andrew Johnson (1865–1869). 1863–64 January Uprising in the Russian Empire. On 19 July 1864 the fall of Nanjing formally