1519 (March 4): The Spaniards land in what is now Veracruz. The natives greet him with gifts. A contingent from Tenochtitlán also arrives with gifts. Cortes showed force and demonstrated his canons, terrifying the messengers.
Cortes sinks all the ships except one small vessel, and moves to the city-state of Tlaxcala. Generally speaking they begin on friendly terms.
The Spanish went on to Cholula. It's unclear what happened, but in the end many people in the city were killed by the Spanish.
1519 (Nov 8): Cortes and army arrives at Tenochtitlán, and begin on good terms. However, Cortes takes charge and demands tribute and some Roman Catholic shrines to replace the Aztec gods.
Cortes returns to the coast to defeat a rival Spanish army. The remaining soldiers join him.
The Aztecs revolt, driving the Spanish from the city. Cuitláhuac becomes emperor.
The Spanish go to Tlaxcala and make an alliance with them.
Most Aztec cities are conquered, and a siege of Tenochtitlán begins.
1521 (13 August): The last Aztec emperor, Cuauhtémoc, surrenders to Cortes.
Answer:
The answer is:
A.They did not have the most advanced military equipment.
C.There was a lack of unity among members of various groups.
E.They were weakened by trade restrictions and blockades
The difference in military equipment made the colonized country unable to defend themselves in the face of Europeans threat.
When this happened, some people decided to surrender to the European while some decided to fight, which divided the unity among them. Not only that, if the majority of people refused to follow the colony, they would be given restrictions and blockades which hurt their economy.
Yes it was a mistake because the mercenaries would not fully commit for the war and not be in the front lines. the americans would be very commited, and had alot of miltia groups that were not soldiers but just ordinary people who help guns