What are the colorful little squares on the soldier's chest, and how many are there?

It's a diploma similar to a foreign military medal.

Our military grade diploma has two functions: 1. As a supplement to the rank, it indicates the rank. Besides the rank, our military officers also have ranks, such as "regular military rank" and "deputy battalion rank". 2, said the service life.

indicates the job level: 1. The seniority badges are arranged in rows, with 3 in each row. Members of the Military Commission and Vice Chairman of the Military Commission have a row of 7 * * *, six rows at the army level, five rows at the corps level, four rows at the corps level, three rows at the regimental level, two rows at the battalion level, and one row at the company level and platoon level. In the middle of the top row of each officer, there is a "rank brief chapter". The vice chairman and members of the Military Commission are decorated with a star emblem consisting of a five-star and a round olive branch. Above the rank and rank brief chapter, there are two stars, and the deputy is decorated with one. Among them, there are golden stars above the corps level and silver stars below. There are also differences in the background color of the brief chapter: members of the Military Commission and vice-chairmen of the Military Commission are lemon yellow, the commander and deputy commander are orange, the commander and deputy commander are khaki, the commander and deputy commander are red, the commander and deputy regiment are purple, the commander and deputy battalion are blue, and the commander and deputy company are grass green. You can know the rank of an officer by looking at the sketch in the middle of the top row. Because each rank of our army corresponds to several levels, for example, a major may be a battalion or a deputy regiment. This is a supplement to the rank.

stands for length of military service: the functions of all the other chapters are used to stand for length of military service. Add up all the marks on the sketch and it is the officer's length of military service. There are 6 kinds of * * * in length of military service's brief chapter, with 1 lanes, 5 lanes, 4 lanes, 3 lanes, 2 lanes and 1 lane in combination.

If an officer is dissatisfied with the platoon, there is also a "supplementary chapter" with a silver gray background, which is used to fill up the dissatisfied platoon and keep it beautiful.

when wearing, the epaulettes are put into a stainless steel slideway like a slider, and the three epaulettes are arranged in one row, and each row of slideways can be connected with each other.

For example, if a commander (general) of a major military region who has served for 4 years has 18 pieces in 6 rows, he should wear two orange-colored badges of Venus in the eye-catching first row, and the remaining 17 pieces are used to do math problems. Fill in the blanks with those six numbers, and supplement the badges if they are not in line. In this way, every year, officers will change a brief chapter.

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Look at this picture: the female air force major in the middle: 6 in 2 rows, deputy battalion, with a star in the middle in the blue level: deputy battalion. One lane in the upper row, one lane in the second row, three lanes and four lanes from the left in the lower row, and five ribbons in the last row, five years, which is 15 years in length of military service. The female air force captain in the back: there are three in a row, and in the middle is the level of two stars, which is even. 2 lanes on the left, 5 lanes on the right, length of military service for 7 years.

The following picture is a close view of length of military service's brief chapter. From top left to bottom right, there are four one-year chapters, four two-year chapters, four three-year chapters, three four-year chapters, two five-year chapters, one ten-year chapter and two supplementary chapters. The supplementary chapter is used for decoration in case of dissatisfaction.