Nationalism can be defined as an ideology that is based on the premise that a citizen's loyalty to the nation is greater than any individual or group interests. This sentiment of belonging to the soil in which a person was born or raised started to shape public opinion since the 18th century. A lot of countries and its citizens based the decision of dominating other countries or regions, upon nationalist's feelings. They would defend international invasions, upon the concept that their own country, culture and believes were at risk, if the opponent was not controlled or stopped.