WW1 gave them a chance to get more colonies by taking land off other people. they wanted land because they felt they had missed out when everyone was getting Africa.
Try to gain more land.
It didn't gain any land. It did lose a lot of land, though.
The USA joined World War I after the Germans sank the Lusitania, a British cruise-liner, containing hundreds of Americans. Their entrance is similar to Belgium's, as they were attacked by Germany. Other countries entered the war for reasons of alliances or reasons of wanting to gain land.
Germany entered WWI because they were allies with Austria-Hungary and Russia. Austria-Hungary went to war because of the assassination of the arch duke Franz Ferdinand and Germany saw that as a good opportunity to attack France and try to gain land.
Germany entered neutral Belgium on August 4, 1914, Britain then gave an ultimatum to Germany to leave the country. That was refused, and the UK declared war later that same day.
There goals where to become a world power.
Germany
Germany declared war on Poland. Poland didn't have a choice.
The United Kingdom officially declared war on Germany on August 4, 1914, thereby entering World War I.
Austria had been annexed by Germany in March 1938.
Try to gain more land.
Germany sent Mexico a document trying to get them to declare war on the USA and thereby prevent USA from entering the war on the side of the Allies. The British intercepted the document and after they showed it to the Americans, the USA declared war on Germany, entering WWI.
Brilliant leadership, patriotism, and the large population of Germany.
stop
To gain support for entering World War II - Apex
It didn't gain any land. It did lose a lot of land, though.
Great Britain demanded that Germany respect Belgium's neutrality, but Germany refused.