As World War I dragged on into 1915, German armies along the Western Front settled into stalemate with entrenched British and French forces. But in the East the picture was quite different. The Kaiser’s army routed the Russians, took possession of Polish territory, and attempted to create a Polish satellite state. Elusive Alliance delves into Germany’s three-year occupation of Poland and explains why its ambitious attempt at nation-building failed.

Dubbed the Imperial Government-General of Warsaw, Germany’s occupation regime was headed by veteran Prussian commander Hans Hartwig von Beseler. In his vision for Central Europe, Poland would become Germany’s permanent ally, culturally and politically autonomous but bound to the Fatherland in foreign policy matters. To win Polish support, Beseler spearheaded the creation of new institutions including a Polish-language university in Warsaw, reformed the school system, and established democratically elected municipal governments. For Beseler and other German strategists, a secure Poland was essential to ensuring Central Europe against a threatening tide of nationalism and revolution.

But as Jesse Kauffman shows, Beseler underestimated the resistance to his policies and the growing hostility to occupation as Germany plundered Polish resources to fuel its war effort. By 1918, with the war over, Poles achieved independence. Yet it would not be long before they faced a second, far more brutal German occupation at the hands of the Nazis.

Brazil was one of the emerging world powers to be invited to the Paris Peace Conference in 1919. Having jettisoned her empire just thirty years before, the Portuguese-speaking nation was showed signs of becoming one of the financial powerhouses not just of Latin America, but of the world. Helped by abundant natural resources, cheap labour and large-scale immigration, Brazil’s economy had grown massively – and now it wanted to take its proper place in the society of world nations. In Paris, the country’s delegation was led by Epitacio Pessoa, a brilliant lawyer who had made his mark in national politics and was also a committed Europhile. It was a shrewd choice; helped by the Americans, Pessoa negotiated a deal to rescue Brazilian coffee from the German ports where it had languished since the middle of the war. He also helped win a place at the top table for Brazil in the new League of Nations. Pessoa was then rewarded by being elected president of Brazil – even though he was in Paris at the time. Yet even as Brazil enjoyed its moment of triumph on the international stage, the country’s political system was starting to unravel. Pessoa’s presidency ended in failure in 1922, its modest achievements overshadowed by bitter army revolts. And as Pessoa embarked on a new career as an international judge, his country slipped further into political infighting between elite oligarchies until the ageing republic finally folded in 1930. This, then, is the story of Epitacio Pessoa, the Treaty of Versailles and the rise and fall of Brazil’s tumultuous First Republic.