In 2v2, if an enemy uses Charm to move my unit to my teammate's battlefield, do we do combat?

Ruling: No, you cannot move your units to a friendly occupied battlefield, whether by standard move or by effects like Charm.

Nuances:

• While Charm can be used to make enemy players fight between themselves in 2v2, it cannot force two players on the same team to be at a battlefield together
• The restriction applies to both standard moves and card effects