[rmlew]

The Mongols invaded Vietnam and forced it to become a tributary for 2 generations. The second and third invasions were failures, but the Vietnamese still accepted vassalage. Arguably, they did better than we did.
They also conquered Volga Bulgaria and the Mari Finns in the forests. The Mongols may not have been as efficient in forests as in the steppe, but they could get the job done.

[justa-hairyape]

The Mongols may not have been as efficient in forests as in the steppe, but they could get the job done.

They frequently burned entire forests. Fire was a normal war tactic for them. Which helps to illustrate the stupidity of the Leftists Greenies. Mongols killed everything. Killing animals was their favorite sport.