The Toy Soldiers fought against the 2nd Doctor.
The Toy Soldiers come from the Land of Fiction as they were created by the Master Brain. The Toy Soldiers are the camera's for the Master of the Land of Fiction and they do find the Doctor, Jamie and Zoe thanks to Samuel Gulliver. The Toy Soldiers let the Doctor and his friends go.
Later on a Toy Soldier did follow them into a cave where a Minotaur and Medusa lurked. A Toy Soldier did chase Jamie off into the other direction. The Toy Soldier however couldn't climb the cliff to chase Jamie up so he got away.
When the Master Brain was destroyed thanks to the White Robots everything in the Land of Fiction vanisged including the group of Toy Soldiers.
The Toy Soldiers have appeared in:
Season 6: The Mind Robber