The army is a melting pot.

The army is a melting pot, and the following sentence is: it is tempered with steel.

The army is a melting pot, tempered with steel bars. This sentence vividly describes the forging and training role of the army for soldiers. The army is a melting pot: the army gathers talents and resources from all aspects. Soldiers get along with comrades from different regions and backgrounds in the army, and form a sense of teamwork and collective honor through mutual learning, exchange and discussion.

tempered with steel: in the army, soldiers undergo rigorous training and assessment, including physical training, military literacy and discipline education. These trainings are aimed at training and cultivating soldiers' physical quality, will quality and combat effectiveness, so that they have strong willpower and tenacious perseverance, and have the ability to cope with all kinds of difficulties and obstacles. "Reinforced bone" symbolizes the strength and fortitude of soldiers, with tenacious perseverance and unyielding spirit.

This sentence expresses that soldiers who have undergone training and exercise in the army will become stronger, not only with excellent personal qualities, but also with teamwork and combat ability. At the same time, it also emphasizes that the army is a collective, and through mutual exchanges and cooperation, it can grow and progress together.

Basic requirements for joining the army

Applicants are usually required to be at least 18 years old (or the legal age of majority), while not exceeding a certain upper age limit. Different services and different positions may have specific restrictions on age. For example, special forces may require age to be within a certain range. Candidates are usually required to have the nationality of their country and meet the relevant national laws and regulations for enlistment. Some countries will have different recruitment policies for foreigners.

Different positions and military services may have different requirements for academic qualifications. Some positions may require applicants to have at least a high school diploma or equivalent, while some special positions may have further requirements for academic qualifications. Physical health is one of the basic requirements for joining the army. Applicants need to pass physical examination and physical fitness test to ensure that their physical condition meets the criteria for joining the army. Height, vision, hearing and so on may also have corresponding requirements.