The term SERIOUS STRUGGLE can be summarized as a WAR, which is a three-letter word. WAR is an armed conflict between two or more countries, nations, or other groups of people. It is usually characterized by extreme violence, destruction, and mortality. Wars are often fought for political, economic, religious, or ideological reasons. They can also be fought to gain territory or resources. Wars have been a part of human history since ancient times and continue to be a major source of suffering and death in the modern world.