CROSSING "THE THIN RED LINE"

The "Thin Red Line" often means the final boundary or division between order and chaos, or between good and evil. It is also used to denote a limit beyond which someone must not go without facing severe consequences. It suggests the idea of a physical boundary marking the limits between acceptable and unacceptable behaviour.

The expression is part of the English language vocabulary.

However, there is a military origin to this phrase which goes back to the British Crimean War, particularly the Balaklava Campaign. Though the Balaklava Campaign became infamous for one of the most infamous blunders in military history, the Charge of the Light Brigade, made immortal by Alfred Tennyson, 1st Baron Tennyson.

Cannon to right of them,

Cannon to left of them,

Cannon behind them

Volleyed and thundered;

Stormed at with shot and shell,

While horse and hero fell.

They that had fought so well

Came through the jaws of Death,

Back from the mouth of hell,

All that was left of them,

Left of six hundred.

BUT it was also famous for the heroic defence by a small group of British soldiers (the 93rd Highlanders) who stood their ground against a much larger Russian cavalry force. The soldiers were described as forming a "THIN RED LINE" due to their red uniforms, symbolizing bravery and steadfastness in the face of overwhelming odds.

The Battle of Balaclava, fought on 25 October 1854 during the Crimean War, was part of the Siege of Sevastopol (1854–55), an Allied attempt to capture the port and fortress of Sevastopol, Russia's principal naval base on the Black Sea.

A Russian cavalry force of 2,500, commanded by General Ryzhov, was advancing on the camp of the British cavalry. About 400 Russians were involved in the incident.[4] It was early morning, and the only troops between the oncoming cavalry and Balaklava was the 93rd Highlanders Regiment.

500 Highlanders and 350 Turkish forces VS 400 Russian Cavalry

Colin Campbell, 1st Baron Clyde, arranged the 93rd into a line two deep—the "thin red line", though convention prescribed a line four deep, to meet the cavalry charge. As the Russian cavalry approached, the Turks on the flanks broke and fled. The 93rd discharged two volleys, at 800 and 500 yards (730 and 460 m). They did not get a chance to discharge one at point-blank range as the Russians turned away.

There were more Victoria Crosses presented to the Highland soldiers at that time than at any other.