The army is the part of a country's military that fights on the ground. People in the army are called soldiers. Many modern armies have vehicles such as tanks, airplanes, and helicopters to help soldiers fight on the ground.
A soldier may be a volunteer (someone who joins something because they want to), or he may be forced by the government to join the army. Forcing men to join the army is called conscription or draft. Voluntary armies tend to be small by numbers, but high in confidence and quality. Drafted armies are large, but often lacking in confidence and in quality: it may be very difficult to force someone to risk his life against his will. Sometimes an army is made up from mercenaries, who fight just for pay and have little loyalty to the country which they serve.
Soldiers do many things, from shooting enemies, to digging defensive trenches. They are used to defend their country, or attack another country's army. It is difficult, and soldiers must be in good shape, both physically and mentally. They almost always move together, and that way the team can do more things, in a safer way. They may be assigned to certain places to guard, or they may be told to search a place, or even attack it. That is up to their commander. Every soldier answers to someone else, so that way, everything is organized.
Sometimes, when a country's army is busy in different places, and there are not enough soldiers to do more, a country can hire civilians to do some of the army's jobs, like protecting buildings and important people and convoys of trucks traveling from one place to another. Usually, they hire veterans who were members of the military before leaving and working elsewhere.
Working in the army and wearing the uniform is called service. A soldier will never say "I work as a Sergeant in the signal corps" but always "I serve as a Sergeant in the signal corps", or other rank, specialty and unit. Only civilian workers who do not wear uniform speak about "working" in the army.
Military strength change
Source: Global Firepower Index
The function of the army is based on discipline. That means that every soldier will unquestionably carry out the orders which he or she has received and will obey his or her superior officer or non-commissioned officer. There is only one exception: orders which violate the human rights or international law must not be obeyed as it is considered a war crime. The chain of command is expressed by the military rank system and hierarchy.
A soldier is supplied with weapons, such as guns, knives, and other simple gear for surviving in the battlefield, such as food, water, clothes, and tents. They must keep good care of the items. Some soldiers train to be a doctor for the army, or other civilian duties.
Before a soldier joins the army, he must qualify to be in it first. The person is put through tests, so that the army will know if the recruit can do it or not. This is sometimes called 'boot camp'. He must complete mental tests, and physical tests. It depends on where he is testing that will tell him how hard it will be. He will also take tests to determine what job he will do in the military. For instance, he may work with computers and be a member of the signal corps or be a cook for the soldiers, he may have been a construction worker in civilian life and be a military engineer, he may become a truck driver and serve in logistics, or he may be very good with a rifle and be a sniper in the infantry. There are a lot of jobs that a person can choose to do in the army.
There are traditionally six branches of service in the army:
- Infantry, foot soldiers who fight with rifles and other light weapons
- Cavalry, mounted soldiers. Today tank has replaced horses and cavalrymen are called tankers.
- Artillery, soldiers who operate cannons, howitzers and mortars. They provide fire support for infantry.
- Military engineers, soldiers who build things and demolish (blow up) things and handle explosives.
- Signal corps, soldiers who operate communications, radios, radars, signaling and computers.
- Logistics, which carry supplies (food, fuel, ammunition, medicines etc.) to other branches and replenish them.
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- Air Force, the part of the military which operate airplanes to bomb or dogfight.
- Navy, the part of the military which fights with warships on the sea.
- Marines, the part of the military that fights in air, land, and sea.
- Coast Guard, the part of the military that protects a nations border with seas, lakes, oceans and other bodies of water that are important to national security.