Army
An army, also known as ground forces, was a branch of a military responsible for conducting combat operations on land.

It was told in the Vulcan story of Nirak that Nirak was standing watch over the gates of Gol when he mistakenly thought that an approaching army was a sandstorm, and failed to send a warning. The army destroyed the city, but they spared Nirak's life. His name later came to mean "fool" in the Vulcan language. ()

On Earth, several Human nations had armies, such as the United States Army, the Mexican Army, the Confederate Army, and the Heer of Nazi Germany.

When the threat of a Skorr jihad was revealed in 2270, Spock calculated that, in two standard years, the Skorr would be capable of breeding an army of two hundred billion warriors. ()

Q appeared as a 21st century Earth Army soldier to the crew of the  in 2364. He was using a box of narcotics labeled "Army". ()

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Military