What is nationalism? the use of diplomacy and military strength to extend a country’s power over new places
the development of industry that leads to the increased production of goods in a country
the belief of a government that they should have a strong military and be prepared to use it against other nations
the idea that people should support the needs and goals of their nation, even it if hurts people from other countries

Nationalism is an idea and movement that holds that the nation should be congruent with the state. As a movement, nationalism tends to promote the interests of a particular nation, especially with the aim of gaining and maintaining the nation's sovereignty over its homeland to create a nation state.

Explanation:

Explanation:

Nationalism is an ideology and movement that promotes the interests of a particular nation, especially with the aim of gaining and maintaining the nation's sovereignty over its homeland.

a drastic rise in oil prices ended decades of postwar.