In the 19th century, at that time
"The Thin Red Line" was born first.
This phrase was originally used to refer to British soldiers wearing red uniforms.
Formed a front line according to the customs of the time, fighting against the Russian cavalry.
In the Kremin War of 1853-1856

And shortly after that, the phrase "The Thin Blue Line"
It occurs and is used in the same way.
But it refers to the United States soldiers in the 19th century during the period of the founding of the American nation.
Where they wear blue uniforms

Many nations at that time used weapons and mostly armies.
It is a sword, infantry with a musket and bayonet, cavalry and artillery.
It is an infantry battle formation tradition in which soldiers stand side by side with their comrades.
Shoulder to shoulder, arranged in a blue line across the board.
To increase firepower and reduce the risk of bullet trajectory from the same side.
And you can increase the number of rows to increase the frequency of the firing cycle.
"The Thin Blue Line" has always been used and referred to in that sense.
Until around 1950
A shorter slang term: "Blue line"
It has been adapted to call police in the United States.
Because of the navy blue uniforms they wear while performing their duties.

The "Blue Line" here is equivalent to the "Red Cross" symbol.
It is a symbol representing all medical personnel.
"The Evil is powerless if the good is unafraid."
"Evil will have no power if good is fearless."
This sentence leads to the development of the idea of having a symbolic image.
"The Thin Blue Line" dark black rectangle
It is divided in half by a thin blue line down the middle.

It means a police officer who is on duty.
It is an upper line of defense, which means being a good civilian who follows social norms.
From the bottom of the line, it means any group or person.
To have ill intent on other people and society.
And often, countries place this symbol on their national flags.
It is a picture of the national flag with a blue line in the middle.
Show respect and remember the bravery.
of police officers in their countries
Whether they are alive or dead.
But if they sacrifice themselves,
Risking their lives every day while performing their duties
It is a line of defense against danger to their people.


"The Thin Blue Line" therefore has no user or ownership requirements.
But it is a symbol for the officials themselves.
Remembering our fallen comrades, their bravery and their duty.
It is a symbol for relatives, siblings and family.
Remembering the bravery and self-sacrifice
An alternative for those who risk their lives every day.
Source: https://www.flagsofvalor.com/blogs/news/the-thin-blue-line
Article: The Thin Blue Line
Translated and edited by: Teetat Rinchai on October 30, 2020