Across the armed forces, the minimum age allowed for enlistment is 17 (with parental consent) and 18 (without parental consent). The maximum age for enlistment for someone who has never served in the military before varies by branch; for the Army it's 35, for the Navy it's 34, for the Air Force it's 39 and for the Marines it's 28.
The year of the horse means there is leadership associated with this sign this year, so your authority may increase, according to Ng. However, the impulsive behaviour of the horse can lead to recklessness, so stay away from gambling and speculations.
A mare is an older female horse of breeding age. Baby horses are called foals. Generally, a baby horse is called a foal. If it's a male, it's called a colt. If female, a filly. A baby horse is called a foal. A baby female is called a filly-foal and a baby male is called a colt-foal. Once they are weaned they are called foal, filly, and colt, respectively until three years old, when they become horse, mare, and stallion, (or gelding) respectively.