Define Invasion – Invade (Invaded) in Military Wars
While in war, there is a common military offensive in which large parts of combatants of one geopolitical entity aggressively enter the territory owned by another such entity. In most cases, this may be with the objective of either conquering, liberating or re-establishing control or authority over a territory. This basically results to forcing the partition of a country. This military offensive is referred to as an Invasion.
Invasion alters the established government or leads to gaining of concessions from the said government, or a combination thereof.
Invasion may not only constitute an entire war in itself but also can be the cause of a war or be a part of a larger strategy to end a war. They are usually strategic in planning and execution due to the large scale operations associated with them.
Invasions have been frequent occurrences since prehistory as evidenced by various Archaeological pieces. Before the radio communications and fast transportation, the only way to ensure adequate reinforcements was to move armies as one massive force. This therefore led to the strategy of invasion.
The various methods by which an invasion can take place include:
Invasion by Land
This is a straightforward entry of armed forces into an area using existing land connections, usually crossing borders or otherwise defined zones. Troop movements in most instances are usually slow and are subject to disruption by terrain and weather. This tactic can however in a quick victory.
Invasion by Sea
This is the use of a water body to facilitate then entry of armed forces into an area, often a land mass adjoining the body of water or an island.
This has the ability to perform a surprise attack from sea, or that naval defenses of the area in question are inadequate to repel such an attack.
Invasion by Air
This tactics involves sending military units into a territory by aircraft. Many time air assaults have been used to pave the way for a ground or sea-based invasion, by taking key positions deep behind enemy lines such as bridges and crossroads, but an entirely air-based invasion has never succeeded.
To be able to delay or forestall an invasion, various states with hostile neighbors typically adopted defensive measure for their security. These measures have not only included utilizing of geographical barriers such as rivers, marshes, rugged terrains but also fortifications. Such defenses are intended to actively prevent invading forces from entering the country by means of an extended and well-defended barrier. The Great Wall of China and the Hadrian’s Wall are famous examples.
Invasions are most likely known to cause loss of territory, generally accompanied by a change in government and often the loss of direct control of that government by the losing faction. This may sometimes result in the transformation of that country into a client state often accompanied by requirements to pay reparations or tribute to the victor.
Invasions are in some cases limited to a geographical area, which is carved into a separate state like it is the case with the Bangladesh Liberation War of 1971.