Isolated US Timeline

I'll do this timeline in the form of headlines. It will be chronological.

1912

 * Austria: Austrian Engineer Gunther Burstyn has unveiled a new tank that can cross trenches and mountain slopes as well as having a gun that swivels seamlessly.  It begins being put into production.
 * Mexico: Porfirio Diaz dies at age 80 when running for reelection. There is no mexican civil war and President Madero becomes elected. There is no Mexican Revolution and Mexico maintains relations with Germany.
 * United States: The US holds the first industrial airplane show.
 * Britain: The British army is brought down to Sydney Street to destroy a gang of Latvian Anarchists. The Anarchists gain sympathy from various workers and they fight the army. Although they are killed, this is the stirrings of a much greater war to come.
 * Germany: A German physicist designs the first jet engine.
 * France: A bulk of french forces are deployed in Morocco. A large amount of German ships are deployed to counter it. Negotiations between Paris and Berlin fail and Morocco becomes a tense, militarized zone.
 * The Balkans: Bulgaria and Serbia form a secret alliance.
 * Spain: The Spanish, who have heavy sympathies towards the German and Austrian Coalition, join in with German forces in Morocco. 

​1912

 * Austria: Gunther's new tank remains secret and is distributed to Spain, Mexico, and Germany.
 * World: The International Opium Convention is signed at the Hague.
 * China: The Republic of China is proclaimed under Sun Yat Sen and the.
 * US: The New Mexico Territory becomes fully incorporated into the US. The US refuses to occupy Nicaragua, adopting a "Sleeping Giant" policy of maintaining a large military to deter war and not to join in on a war. This is the beginning of US Isolationism that is common today.
 * Japan: The Taisho Period begins in Japan with the death of Emperor Meiji.
 * The Balkans: The First Balkan War breaks out with Montenegro declaring war on Turkey. The war ends with various european territories of Turkey becoming independent.
 * Albania: Turkey gives Albania independence.
 * Morocco: The Spanish declare a Spanish Protectorate of Morocco with German support. France is angered by this and maintains a proxy war between french supported Moroccan Rebels and the Spanish and German Protectorate Government.

1913

 * The Balkans: Bulgaria, unsatisfied with the division of the Balkans after the first Balkan War, starts another one to gain more territory. Turkey also intervenes to help Bulgaria and regain lost territory in Europe. Serbia has a financial crisis after the French stop loaning them money to increase their military and demand the debts be repayed in order to finance their war in Morocco which has spill over to Algeria and other areas of French West Africa. Austria also supports Bulgaria to help fight against Serbia.
 * East Asia: Tibet declares independence from the falling Qing Dynasty. Bolsheviks fleeing Russia establish their own state in Mongolia. It is small and largely unrecognized. "Rogue" Japanese troops invade German controlled China and are defeated. Japan allies with Germany
 * Austria: Hitler, Tito, and Stalin stay in Vienna.
 * Germany: Germany ensures its alliances with the soon to be central powers: Spain, Turkey, Bulgaria, and Austria. Germany pursues its own colonial interests in French West Africa as the war in Morocco spills over to other nations. 
 * France: France allies with Britain to help in the Moroccan War. The British agree to help France as an associated ally.
 * United States: The US distances themselves from Europe and begins several civil projects.
 * Mexico: The Mexican Republic enters a period of prosperity with financial help from Germany and a neutral US.
 * Russia: Civil unrest continues as the Tsarist regime begins to topple.
 * Britain: Irish Revolutionaries grow in number as well as socialists and anarchists that threaten the empire. Scenes similar to the Sydney Street Siege happen all over the country. There are rebellions in Rhodesia funded by South Africa.

1914

 * Austria: Gavrillo Princip, a South Slav nationalist, assassinates Archduke Ferdinand of Austria in Sarajevo. Austria announces an Ultimatum to Serbia. After a series of diplomatic "oopsies", Austria and Serbia go to war.