"Fast Incan communications lets you train soldiers faster."—In-game description
Incan Chasquis Messengers is a technology in Age of Empires III that can be researched at a Trading Post built on an Inca settlement. Once researched, it reduces the training time of military units at varying rates depending on the unit in question:
- 25% for infantry and cavalry
- 10% for artillery
- 12% for the Black Flag Army
- 18% for the Mongolian Army
Interestingly, Skull Knights and Dog Soldiers receive two effects from this technology (along with other technologies that reduces train time, possibly to prevent abuses); one which reduces their train time and the other increases it, essentially cancelling each other out.
Strategy 
Edit
Incan Chasquis Messengers is possibly the most important upgrade for a Treaty game, since it significantly improves unit train rates. No civilization should pass it up in long-running games if they have the resources and Trading Post(s) needed.
