Silent March
The Silent March was a show of political solidarity and military strength, conceived by the rulers of Halkor and Nadrak to break Halkor from the Duchy Volar around 300 years ago. Twenty thousand orcs marched from Nadrak, around the Enchanted Woods, past the Lone Peak, and into the Tail in the Alsgart Ranges to attack the dwarven Tieran Fasthold. During this trek, they paused barely one day's travel north of the city of Volar, and marched on the spot for 24 hours without a word being spoken by any orc. They then turned east and finished their invasion of the dwarves.
This act of discipline and power cowed the Volar leadership, and Halkor and Karne became independent baronies. This has lead to contempt and rancour between the human lands to this day.