Central Power Sweden

What if Sweden-Norway resisted Norwegian independence in 1905 and adopted a more expansionist foreign policy, eventually joining the Central Powers?

1900's
1905: (POD) Norway attempts to break away from the personal union with Sweden. The Swedo-Norwegian Army crushes the movement, and Sweden officially annexes Norway, recreating the Swedish Empire and leading to a more expansionist foreign policy on the lines of Germany and Austria-Hungary.

Meanwhile, the First Moroccan Crisis takes place and Sweden stays neutral at first, later joining the crisis in support of Germany after the Norwegian Rebellion is quelled. Also, the Russo-Japanese War takes place the same way as in OTL.

1908: Austria annexes Bosnia and Bulgaria declares independence from the Ottoman Empire. Russia and Serbia protest, but back down after Germany declares support for Austria.

1910's
1911: The Second Moroccan Crisis takes place and despite Swedish support for the Central Powers, Britain and France emerge victorious and France annexes Morocco. Meanwhile, the Italo-Turkish War starts and Italy gains the colony of Libya the following year.

1912: The First Balkan War erupts between the Balkan League (Serbia, Montenegro, Bulgaria, and Greece) on one side and the Ottoman Empire on the other. The Balkan League wins and gains lots of land.

1913: Bulgaria betrays Serbia and Greece, starting the Second Balkan War. Romania and the Ottoman Empire later join the war against Bulgaria and Bulgaria is defeated.

1914: Archduke Franz Ferdinand is assassinated is Sarajevo. Austria-Hungary blames Serbia, who denies any prior knowledge of the assassins. Declarations of war keep flying around and eventually most of Europe is at war. Sweden, however, manages to stay neutral for the time being. Later, German territories in Africa and the Pacific and occupied by British and Japanese allied forces.

1915: Italy and Romania join the Allies while Bulgaria and the Ottoman Empire join the Central Powers. Serbia is defeated and Sweden also joins the Central Powers after Swedo-German negotiations are concluded.

The combined Swedo-German naval force breaks the North Sea blockade and occupies the English Channel, breaking Allied supply lines and freeing up German imports. The British Isles are later blockaded, and the Royal Navy is defeated, although a part of it manages to escape to the Pacific.

Meanwhile, the Swedish Army invades Russian Finland, forcing Russia to divert a large portion of it's army to defend the area, which makes the Eastern Front a little easier for the Austrians and Germans and the Italian Front harder for Italy as Austria sends more forces there. Also, Germany tells the Ottoman Empire to send more troops to Africa and leave only 15% for defense of the Caucasus. The Ottoman Empire obliges.

1916: The Central Powers make big gains on all fronts, capturing Paris and defeating France. Great Britain is invaded from the north and troops are sent to protect Scotland. Meanwhile, Allied colonial troops face a general rebellion of Arabs and Africans in the south and the Ottoman Empire in the north. St. Petersburg is placed under siege and the Russian Tsar is evacuated to Moscow. Sino-German negotiations begin.

1917: London and St. Petersburg are captured, causing Britain and Russia to surrender. Communists take power in Russia and begin peace negotiations. Meanwhile, China joins the war as a Central Power and attacks Japan, an Allied power.

1918: Japan resists well, but German troops are mobilised and ready for an invasion.

1919: Once German troops successfully land on the islands of Ryukyu and Kyushu, Japan finally agrees to an armistice.

1920's
1920: The Berlin Peace Conference is held to decide the fate of the Allied Powers.

Treaty of Potsdam:

 * 1) Belgium will be annexed by Germany.
 * 2) Large parts of northern France will be ceded to Germany.
 * 3) France will pay a large sum of war reparations.
 * 4) French colonial possessions will be ceded to Germany, with the exception of French Madagascar and French Indochina, which will be ceded to Sweden.

Treaty of Weimar:

 * 1) The UK will be split into England, Scotland, Wales, and Ireland.
 * 2) British colonial possessions will be ceded to Germany, except for Egypt and Sudan, which will be ceded to the Ottoman Empire, and South Africa, which will be ceded to Sweden.
 * 3) The global exchange currency will switch from the English pound to the German mark.
 * 4) Britain will pay war reparations.

Treaty of Regensburg:

 * 1) Russia will cede Poland and Livonia (the Baltics) to Germany as puppet states.
 * 2) Russia will cede Belarus and Ukraine to Austria as puppet states.
 * 3) Russia will cede Finland (including Aland), Murmansk, and Karelia to Sweden.
 * 4) Russia will pay war reparations.

Treaty of Erfurt:

 * 1) Italy will cede Libya back to the Ottoman Empire.
 * 2) The rest of Italy's colonies will be ceded to Germany.
 * 3) Italy will cede the Venice region to Austria-Hungary.
 * 4) Italy will pay war reparations.

Treaty of Heidelburg:
1921: Austria-Hungary collapses and breaks into civil war due to the central government having to deal with existing pre-war ethnic tensions and new ethnic tensions caused by the new puppet states. The Austrian government declares the breakup of Austria-Hungary and relinquishes all jurisdiction over the empire to the German government.
 * 1) Korea will be ceded to China and all Japanese Pacific territories will be ceded to Germany.
 * 2) Japan will pay war reparations.

Seeing this golden opportunity to unite all Germans in Germany, Kaiser Wilhelm jumps at it, annexing the German-speaking regions of Austria and mobilising the army to stabilize the empire.