The Armies of Israel: Called: Horsemen and Chariots Introduced Into, After David's Reign
Source: TTT
1 Kings 1:5
At that time Adonijah, David’s son by Haggith, began to exalt himself, saying, “I will be king!” And he acquired chariots and horsemen and fifty men to run ahead of him.
1 Kings 4:26
Solomon had 4,000 stalls for his chariot horses and 12,000 horses.