--- title: "Congress of Berlin — AP Euro Definition & Exam Guide" description: "The Congress of Berlin (1878) was Bismarck's conference to settle Balkan disputes after the Russo-Turkish War. Key to AP Euro Topic 7.3 and the road to WWI." canonical: "https://fiveable.me/ap-euro/key-terms/congress-of-berlin" type: "key-term" subject: "AP European History" unit: "Unit 7" --- # Congress of Berlin — AP Euro Definition & Exam Guide ## Definition The Congress of Berlin (1878) was an international conference, hosted by Bismarck as an "honest broker," where the Great Powers redrew the Balkan settlement after the Russo-Turkish War, limiting Russian gains, managing Ottoman decline, and stoking the nationalist tensions that fed into WWI. ## What It Is The Congress of Berlin was an 1878 meeting of the European [Great Powers](/ap-euro/unit-7/context-19th-century-political-developments/study-guide/ez4TRGDGv5c0ZLzpw5ws "fv-autolink") in Berlin, chaired by Otto von [Bismarck](/ap-euro/key-terms/bismarck "fv-autolink"), to renegotiate the settlement of the Russo-Turkish War. Russia had just crushed the Ottomans and dictated a treaty that created a big, Russian-friendly Bulgaria. Britain and Austria-Hungary saw that as Russia grabbing too much influence in the Balkans, and the situation threatened a wider war. Bismarck stepped in as the self-described "honest broker," hosting a conference to scale back Russia's gains and divide influence in the region among the powers. The result was classic Realpolitik. Bulgaria was shrunk, Austria-Hungary got to occupy and administer Bosnia-Herzegovina, Britain picked up Cyprus, and Serbia, Romania, and Montenegro won formal independence from the Ottomans. The congress kept the peace among the Great Powers in the short term, but it left almost everyone in the Balkans angry. Russia felt betrayed by Germany, which helped collapse the original Three Emperors' League. Balkan nationalists felt their aspirations had been carved up by outsiders. The CED lists the Congress of Berlin as the first in the chain of Balkan crises leading up to [World War I](/ap-euro/unit-8/world-war-1/study-guide/oVbBctdhCZgYi3ZADgtO "fv-autolink"). ## Why It Matters This term lives in **[Unit 7](/ap-euro/unit-7 "fv-autolink"), Topic 7.3 (National Unification and Diplomatic Tensions)** and directly supports learning objective **7.3.B**, explaining how [nationalist sentiment](/ap-euro/key-terms/nationalist-sentiment "fv-autolink") and political alliances created tension among European powers from 1815 to 1914. The CED's essential knowledge (KC-3.4.III.E) names the Congress of Berlin in 1878 as the starting point of the Balkan nationalist tensions that drew the Great Powers into a series of crises before WWI. It also connects to KC-3.4.III.C, Bismarck's post-1871 effort to maintain the balance of power and isolate France, because Berlin 1878 is Bismarck's alliance system in action and the moment it first cracked. If you can explain why Russia left this conference furious, you can explain why Bismarck needed the Reinsurance Treaty and why the Balkans became Europe's powder keg. ## Connections ### [Bismarck's system of alliances (Unit 7)](/ap-euro/key-terms/bismarcks-system-of-alliances) The Congress of Berlin is where Bismarck's juggling act first wobbled. By limiting Russia's gains, the "honest broker" alienated a key ally, which broke the original [Three Emperors' League](/ap-euro/key-terms/three-emperors-league "fv-autolink") by 1878 and forced Bismarck to patch things up later with the Reinsurance Treaty. ### [Crimean War (Unit 7)](/ap-euro/key-terms/crimean-war) Both events are episodes in the same story, the slow-motion collapse of the [Ottoman Empire](/ap-euro/key-terms/ottoman-empire "fv-autolink") (the "Eastern Question"). The Crimean War exposed Ottoman weakness and broke the Concert of Europe; the Congress of Berlin was the Great Powers trying to manage that decline diplomatically a generation later. ### [Bosnia-Herzegovina annexation crisis (Unit 7)](/ap-euro/key-terms/bosnia-herzegovina-annexation-crisis) Berlin 1878 let [Austria-Hungary](/ap-euro/key-terms/austria-hungary "fv-autolink") occupy Bosnia-Herzegovina without owning it. When Austria fully annexed it in 1908, it enraged Serbia and Russia, set up the next Balkan crisis, and put Franz Ferdinand on the road to Sarajevo. The 1878 decision is the fuse; 1908 lights it. ### [Bismarck's Realpolitik (Unit 7)](/ap-euro/key-terms/bismarcks-realpolitik) The same pragmatic, power-over-principle approach Bismarck used to unify Germany shows up here in peacetime. He had no territorial stake in the Balkans; hosting the congress was about keeping the Great Powers balanced and France isolated. ## On the AP Exam On the AP Euro exam, the Congress of Berlin shows up mostly in multiple-choice questions about late 19th-century diplomacy. Common stems ask its primary goal (managing Balkan disputes and Ottoman decline among the Great Powers), which empire's weakness it addressed (the Ottoman Empire), and what caused the collapse of the original Three Emperors' League by 1878 (Russian resentment of the Berlin settlement). For LEQs and DBQs on the causes of World War I, the Congress of Berlin is your best opening piece of evidence for a causation argument. It lets you trace a clean line from 1878 through the 1908 Bosnian annexation crisis to 1914, which is exactly the kind of long-term causation reasoning those essays reward. No released FRQ has required the term verbatim, but it makes strong specific evidence for prompts on nationalism, alliances, or the breakdown of the balance of power. ## Congress of Berlin vs Berlin Conference (1884-85) Same city, same host, totally different subject. The Congress of Berlin (1878) settled Balkan affairs in Europe after the Russo-Turkish War. The Berlin Conference (1884-85), also chaired by Bismarck, set the rules for European powers carving up Africa during the Scramble for Africa, which belongs to imperialism content. Quick check for MCQs: Congress = Balkans and Ottomans, Conference = Africa and colonies. ## Key Takeaways - The Congress of Berlin (1878) was a Great Power conference, hosted by Bismarck, that renegotiated the Balkan settlement after Russia defeated the Ottoman Empire. - Its main goal was to limit Russian expansion in the Balkans and manage Ottoman decline without triggering a war among the Great Powers. - Russia left the congress feeling betrayed by Germany, which directly caused the collapse of the original Three Emperors' League by 1878. - Austria-Hungary's right to occupy Bosnia-Herzegovina, granted at Berlin, set up the 1908 annexation crisis and deepened the conflict with Serbia. - The CED identifies the Congress of Berlin as the first in the series of Balkan nationalist crises that led up to World War I, making it key evidence for WWI causation essays. ## FAQs ### What was the Congress of Berlin in 1878? It was an international conference hosted by Bismarck where the Great Powers revised the settlement of the Russo-Turkish War. It shrank Russia's gains in the Balkans, let Austria-Hungary occupy Bosnia-Herzegovina, and recognized the independence of Serbia, Romania, and Montenegro. ### Did the Congress of Berlin solve the Balkan problem? No. It prevented an immediate Great Power war, but it angered Russia, frustrated Balkan nationalists like the Serbs, and left the Ottoman Empire still crumbling. The CED treats it as the start of the Balkan crises that led to WWI, not the end of them. ### How is the Congress of Berlin different from the Berlin Conference? The Congress of Berlin (1878) dealt with the Balkans and the Ottoman Empire after the Russo-Turkish War. The Berlin Conference (1884-85) set the rules for European colonization of Africa. Bismarck hosted both, which is why they get mixed up. ### Why did the Congress of Berlin break the Three Emperors' League? Russia expected Germany to back its big territorial gains from the Russo-Turkish War. Instead, Bismarck's "honest broker" settlement scaled them back, so Russia felt betrayed and the original Three Emperors' League collapsed by 1878. AP multiple-choice questions test exactly this cause-and-effect. ### Which empire was the Congress of Berlin really about? The Ottoman Empire. Its decline (the "Eastern Question") created a power vacuum in the Balkans that Russia, Austria-Hungary, and Britain all wanted to fill, and the congress was the Great Powers dividing that influence diplomatically. ## Related Study Guides - [7.3 National Unification and Diplomatic Tensions](/ap-euro/unit-7/national-unification-diplomatic-tensions/study-guide/2F0VoSDx98Wa3iRk8sth) ## Structured Data ```json {"@context":"https://schema.org","@graph":[{"@type":"LearningResource","@id":"https://fiveable.me/ap-euro/key-terms/congress-of-berlin#resource","name":"Congress of Berlin — AP Euro Definition & Exam Guide","url":"https://fiveable.me/ap-euro/key-terms/congress-of-berlin","learningResourceType":"Concept explainer","educationalLevel":"AP® / High School","about":{"@id":"https://fiveable.me/ap-euro/key-terms/congress-of-berlin#term"},"audience":{"@type":"EducationalAudience","educationalRole":"student"},"dateModified":"2026-06-11T05:53:34.722Z","isPartOf":{"@type":"Collection","name":"AP European History Key Terms","url":"https://fiveable.me/ap-euro/key-terms"},"publisher":{"@type":"Organization","name":"Fiveable","url":"https://fiveable.me"}},{"@type":"DefinedTerm","@id":"https://fiveable.me/ap-euro/key-terms/congress-of-berlin#term","name":"Congress of Berlin","description":"The Congress of Berlin (1878) was an international conference, hosted by Bismarck as an \"honest broker,\" where the Great Powers redrew the Balkan settlement after the Russo-Turkish War, limiting Russian gains, managing Ottoman decline, and stoking the nationalist tensions that fed into WWI.","url":"https://fiveable.me/ap-euro/key-terms/congress-of-berlin","inDefinedTermSet":{"@type":"DefinedTermSet","name":"AP European History Key Terms","url":"https://fiveable.me/ap-euro/key-terms"}},{"@type":"FAQPage","mainEntity":[{"@type":"Question","name":"What was the Congress of Berlin in 1878?","acceptedAnswer":{"@type":"Answer","text":"It was an international conference hosted by Bismarck where the Great Powers revised the settlement of the Russo-Turkish War. It shrank Russia's gains in the Balkans, let Austria-Hungary occupy Bosnia-Herzegovina, and recognized the independence of Serbia, Romania, and Montenegro."}},{"@type":"Question","name":"Did the Congress of Berlin solve the Balkan problem?","acceptedAnswer":{"@type":"Answer","text":"No. It prevented an immediate Great Power war, but it angered Russia, frustrated Balkan nationalists like the Serbs, and left the Ottoman Empire still crumbling. The CED treats it as the start of the Balkan crises that led to WWI, not the end of them."}},{"@type":"Question","name":"How is the Congress of Berlin different from the Berlin Conference?","acceptedAnswer":{"@type":"Answer","text":"The Congress of Berlin (1878) dealt with the Balkans and the Ottoman Empire after the Russo-Turkish War. The Berlin Conference (1884-85) set the rules for European colonization of Africa. Bismarck hosted both, which is why they get mixed up."}},{"@type":"Question","name":"Why did the Congress of Berlin break the Three Emperors' League?","acceptedAnswer":{"@type":"Answer","text":"Russia expected Germany to back its big territorial gains from the Russo-Turkish War. Instead, Bismarck's \"honest broker\" settlement scaled them back, so Russia felt betrayed and the original Three Emperors' League collapsed by 1878. AP multiple-choice questions test exactly this cause-and-effect."}},{"@type":"Question","name":"Which empire was the Congress of Berlin really about?","acceptedAnswer":{"@type":"Answer","text":"The Ottoman Empire. Its decline (the \"Eastern Question\") created a power vacuum in the Balkans that Russia, Austria-Hungary, and Britain all wanted to fill, and the congress was the Great Powers dividing that influence diplomatically."}}]},{"@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"AP European History","item":"https://fiveable.me/ap-euro"},{"@type":"ListItem","position":2,"name":"Key Terms","item":"https://fiveable.me/ap-euro/key-terms"},{"@type":"ListItem","position":3,"name":"Unit 7","item":"https://fiveable.me/ap-euro/unit-7"},{"@type":"ListItem","position":4,"name":"Congress of Berlin"}]}]} ```