Italy joined the Allies in World War I after being promised territorial gains, including lands in Austria, through the Treaty of London in 1915. The promise of territories such as South Tyrol and parts of the Adriatic coast incentivized Italy to switch sides from the Triple Alliance with Germany and Austria-Hungary. This decision ultimately shaped Italy's post-war borders and its role in the subsequent peace negotiations.
Italy, however, they were never really part of the Central Powers. They were allied with Austria and Germany but did not join their side when the war started. Later on, they joined the Allies because they hoped to take land from Austria that they considered "Italian".
Both Germany and Italy were allies of Austria during World War I but Italy didn't like Austria very much. This alliance among Austria, Italy, and Germany was called the Triple Alliance.
Italy initially had a defensive alliance with the Central Powers, which included Germany and Austria-Hungary, but chose not to join them at the outset of World War I. Instead, Italy entered the war on the side of the Allies in 1915 after being promised territorial gains. This decision was influenced by Italy's desire to expand its territory and assert its national interests.
Harsh reparations paid by Germany to the victorious Allies,The creation of new countries from the territory taken from Germany/Austria-Hungary/Ottoman Empire.Creation of the League of Nations
Germany's main allies were Austria-Hungary, Bulgaria and the Ottoman Empire.
In May, 1915, Italy declared war on Austria-Hungary. This act brought them into World War I on the side of the Allies. Italy had previously joined an alliance with Germany but changed sides when the Allies promised to give them control of territory they wanted badly.
Austria. They had been allies in WW1, but the Treaty of Versailles forbade their union after World War I.
Italy
Italy's specific goals in the Versailles Treaty were to end up with territory that had at one time belonged to the Republic of Venice (renaissance era). To get the specifics look up the Treaty of London of 1915 in which the French, English & Russians promised the Italians added territory if they declared war on their former allies Austria & Germany.
Italy joined the Entente Powers as opposed to it's allies (the Triple Alliance powers: Germany and Austria-Hungary, the third being Italy istelf) because it had been promised territory in the Treaty of London. As WWI was a war that found its roots in territorial ambition, it was only natural that Italy would join on the side that would promise it land.
It was the assassination of the Romanian duke that encouraged Romanians to join the allies to fight for freedom. Romania was a country controlled by Austria-Hungary at that time.
Italy, however, they were never really part of the Central Powers. They were allied with Austria and Germany but did not join their side when the war started. Later on, they joined the Allies because they hoped to take land from Austria that they considered "Italian".
Because of how the system of allies was, if one country declared war on another, the allies of both countries would join the war as well, to support their allies. This led to a chain event during World War I. Many countries simply got involved because they were allies with another country and had promised to defend them.Example:Austria and Serbia had been the first to go to war. Germany joined soon for it was an ally of Austria. The same goes for Russia with Serbia as well as many other nations.
Both Germany and Italy were allies of Austria during World War I but Italy didn't like Austria very much. This alliance among Austria, Italy, and Germany was called the Triple Alliance.
Napoleon Bonaparte's allies were Austria, Sweden, Prussia, and Russia
because Austria-Hungary was becoming a world power
It was good for a country to have allies because the allies would help your country out with war or rescourses