The war was defined in different ways. For present purposes, it can be defined as a permanent intergruop violence in which the State's military forces participate on one side or the other or both sides in interstate warfare and, generally, on one side only. is the case of civil war. In a world of permanent military forces, it is difficult to say exactly where peace ends and war begins. A military battle that does not last with time may or may not be considered a war. The brief clashes between China and the Soviet Union in March and July 1969, for example, involved several small battles at a few points of the border, during which hundreds of people were killed. Similarly, a long-term violent struggle involving irregular forces, as in Northern Ireland, is ambiguous. There, British uniformed military forces fought a violent and sustained struggle with a non-state army, the Irish Republican Army (IRA), until a ceasefire in force since 1995.
Thus, many activities are covered by the general term war. Therefore, it is not easy to tell how many wars are going on in the world today. Wars are very diverse. Several types of war tend to result from different situations and play different types of roles in conflict negotiation. Starting with the largest wars, the following major categories can be distinguished:
The hegemonic war is a war for the control of the world order as a whole – the rules of the international system as a whole, including the role of of world hegemony. This class of wars is also known as World War, World War, General War or Systemic War. The last hegemonic war was the Second World War.
Total war is the war waged by one state to conquer and occupy another. The goal is to reach the capital and force the government to surrender, which can be replaced by one of the winner's choices. The 2003 war in Iraq is a classic case. The Napoleonic wars, which introduced conscription on a large scale and steered the whole of the French international economy towards the war effort. In total war, the whole society mobilized for the struggle, the entire society of the enemy is considered a legitimate target.
Limited War includes military actions taken to achieve a purpose other than surrender and occupation of the enemy. For example, the United States led the war against Iraq in 1991 and retook Kuwait, but did not travel to Baghdad to overthrow Saddam Hussein's government. Many frontier wars have this character; after occupying the territory he wishes, a state can stop and defend its achievements.
Civil war refers to a war between factions of the same state trying to create or prevent the formation of a new government for the whole state or part of its territory. . The American Civil War of the 1860s is a good example of secessionist civil war.
Guerrilla war, which includes some types of civil wars, is a war without front lines. Irregular forces operate among civilian populations, often hidden or protected by them. The aim is not to confront an enemy army directly, but rather to harass and punish it in order to progressively limit its operation and effectively free the territory from its control.
In short, wars are constantly going on between states, as well as in states since the beginning of history itself. It will remain until the world exists because of the various desires of individuals and actors of the state.