Quote from Metamongoose >>

... there was a miniatures game that could be played on battle maps and such using the pre-painted plastic D&D minis...

https://en.wikipedia.org/wiki/Dungeons_%26_Dragons_Miniatures_Game

• D&D Miniatures was a skirmish game - it wasn't designed for mass combat.
• D&D itself (all eras) is similarly skirmish level (and ultimately quicker for me than DDM).
• Chainmail 1e (D&D's predecessor) was a wargame.
• Chainmail 3e was a skirmish game.
• Onslaught is a 5e era D&D skirmish game.
• Birthright (2e) had it's own abstract mass combat system.
• Battlesystem (1 & 2e) was a full, miniatures based wargame for D&D.
• Dragonlance: Warriors of Krynn is a 5e era, cooperative mass combat system.