The Incas forced the tribes they captured to worship:

the sun

water

the stars

the moon

The sun

Explanation:

Hope it was Right

The sun

Explanation:

The Incas worshipped many different gods, which they associated with natural forces. Their main deity, however, was the sun god, Inti. The Incas believed the gods had to be kept happy through worship. They held many religious festivals throughout the year, and these involved music, dancing, food, and human sacrifices.