Answer;
Nationalism convinced the people of Europe that their own nation could take on any military threat. This was a role nationalism played in the outbreak of world War I.
Explanation;
Nationalism reached a fevered pitch in Europe prior to the first World War. As a political tool, it was the belief that European technological, cultural, economic and military superiority was the cause for the subjugation of more backward economies and cultures.
The pan-Slavic nationalism inspired the assassination of Archduke Franz Ferdinand in Sarajevo in June 1914, an event that led directly to the outbreak of World War I.
It is the opposing thought as to why one side is wrong.
New England is a geographical region comprising six states of the northeastern United States: Maine, Vermont, New Hampshire, Massachusetts, Rhode Island, and Connecticut.[a]It is bordered by the state of New York to the west and by the Canadian provinces of New Brunswick and Quebec to the northeast and north, respectively. The Atlantic Ocean is to the east and southeast, and Long Island Sound is to the south. Boston is New England's largest city as well as the capital of Massachusetts. The largest metropolitan area is Greater Boston with nearly a third of the entire region's population, which also includes Worcester, Massachusetts (the second-largest city in New England), Manchester, New Hampshire (the largest city in New Hampshire), and Providence, Rhode Island (the capital and largest city of Rhode Island).
The phrase 'looking for' means to search or hunt for something that is required.