One of the earliest alliances, the Dual Alliance of 1879 consisted of these countries.
Germany and Austria-Hungary
Historically, all of the Balkans were under the control of this political entity until the late 19th/early 20th century.
The Ottoman Empire
His assassination in Sarajevo on June 28, 1914 created a bit of a ruckus in Europe over the next several years.
Archduke Franz Ferdinand
The Battle of the Somme saw many famous people involved, including Adolf Hitler and this man who wrote about power that rings still today.
J.R.R. Tolkien
This British occupied territory allowed control of the Suez Canal
Egypt
This unofficial alliance was between Britain and France.
Entente Cordiale
This country kept looking to Russia for support throughout various volatile situations in the Balkan region.
Serbia
His case of the munchies put him in the exact right place to assassinate the Austro-Hungarian crown prince.
Gavrilo Princip
This campaign saw the world's largest amphibious invasion force (up to that time) attempt to open the Dardanelles.
Gallipoli Campaign
Leopold II had personal control over this colony in central Africa.
Due to the countries political systems, the Reinsurance Treaty is also known by this name.
The Three Emperors' League
The territory annexed by Austria-Hungary in 1908, when the Austrians stabbed Russia in the back by not calling for an international conference.
Bosnia-Herzegovina
He gave the Austrians a carte blanche to deal with Serbia in any way they saw fit regarding the assassination.
Kaiser Wilhelm II
The longest battle of World War I at approximately ten months.
Battle of Verdun
The French occupation of this territory in Africa made Germany mad, resulting in two crises.
Weltpolitik, or "world policy," was Germany's attempt to gain this country as an ally, but it backfired.
Britain
The 1878 Treaty of Berlin granted independence to these two Balkan states.
Serbia and Montenegro
This was the number of Austrian demands that Serbia denied, but said they would agree to international arbitration.
Two (the eight other demands were accepted)
The single bloodiest battle of World War I.
Battle of the Somme
A Chinese revolt named after the Society of the Harmonious and Righteous Fists.
The Boxer Rebellion
This country joined with Britain in a 1902 alliance to defend interests against Russia in the Far East.
Japan
This former ally in the First Balkan War became the enemy in the Second Balkan War due to arguments over getting more territory.
Bulgaria
Austria-Hungary purposely delayed their humiliating demands to Serbia while the high-level officials of this country were at sea and unable to talk countries out of war.
France (but also Kaiser Wilhelm II)
This country had the highest percentage of casualties (dead, wounded, missing, captured) for their military service members at 90%.
Austria-Hungary
This event at the bottom of the African continent gave a foreshadowing of World War I warfare.
The Boer War