How were the Mongols able to create a large empire, and why did it collapse?

The Mongols were able to establish a massive empire due to their unique military tactics, their brutality, and their discipline. The Mongols used their unorthodox military tactics to their advantage in conquering neighboring civilizations, helping them to form their large empire

Explanation:

peace keepers

idealism to be spread

riches kept

hello!

according to the passage the most suitable options are two. the first one is "by leading the aef to victory in several key battles" like the battle of saint- mihiel and the battle of cantigny mentioned in the passage you copied here. the second one is "by the aef and allied forces defeat germany" since the passage says that his army destroy the german resistance in the meuse- argonne offensive. and also, "by insisting that the aef operate as an independent force".

hope this