What are some problems for ancient Inca?

The ancient Inca faced several significant problems, including environmental challenges such as harsh weather conditions and the difficulty of farming in the mountainous terrain of the Andes. They also dealt with threats from rival tribes and the need to maintain control over their vast empire, which stretched across diverse regions. Additionally, the rapid expansion of their territory posed logistical issues, such as communication and resource distribution, which could lead to unrest among conquered peoples. Finally, the arrival of Spanish conquistadors in the 16th century ultimately led to the downfall of the Inca Empire, exacerbating existing internal strife and external pressures.