NET Bible
"all the storage cities that belonged to him, and the cities where chariots and horses were kept. He built whatever he wanted in Jerusalem, Lebanon, and throughout his entire kingdom."
— 1 Kings 9:19, NET Bible
“And all the cities of store that Solomon had, and cities for his chariots, and cities for his horsemen, and that which Solomon desired to build in Jerusalem, and in Lebanon, and in all the land of his dominion.”
“and all the store-cities that Solomon had, and the cities for his chariots, and the cities for his horsemen, and that which Solomon desired to build for his pleasure in Jerusalem, and in Lebanon, and in all the land of his dominion. ”
“and all the storage cities that Solomon had, and the cities for his chariots, and the cities for his horsemen, and that which Solomon desired to build for his pleasure in Jerusalem, and in Lebanon, and in all the land of his dominion.”
“And all the towns that belonged to himself, and were not walled, he fortified; the cities also of the chariots, and the cities of the horsemen, and whatsoever he had a mind to build in Jerusalem, and in Libanus, and in all the land of his dominion.”
“And all the store-towns and the towns which Solomon had for his war-carriages and for his horsemen, and everything which it was his pleasure to put up in Jerusalem and in Lebanon and in all the land under his rule.”
“And all the cities of store that Solomon had, and cities for his chariots, and cities for his horsemen, and that which Solomon desired to build in Jerusalem, and in Lebanon, and in all the land of his dominion.”
(Pharaoh, king of Egypt, had attacked and captured Gezer. He burned it and killed the Canaanites who lived in the city. He gave it as a wedding present to his daughter, who had married Solomon.)
Solomon built up Gezer, lower Beth Horon,
Baalath, Tadmor in the wilderness,
all the storage cities that belonged to him, and the cities where chariots and horses were kept. He built whatever he wanted in Jerusalem, Lebanon, and throughout his entire kingdom.
Now several non-Israelite peoples were left in the land after the conquest of Joshua, including the Amorites, Hittites, Perizzites, Hivites, and Jebusites.
Their descendants remained in the land(the Israelites were unable to wipe them out completely). Solomon conscripted them for his work crews, and they continue in that role to this very day.
Solomon did not assign Israelites to these work crews; the Israelites served as his soldiers, attendants, officers, charioteers, and commanders of his chariot forces.