Question

What event marked Russia’s liberation from Mongol rule?

When the Russian army stormed the Mongol Empire and assassinated their ruler.
The Russian and Mongol armies faced each other at the Ugra River but no bloodshed.
When the Russian army stormed the Mongol Empire and burned the rulers home.
After the Russian and Mongol armies faced each other in battle the Russian army murdered many of the Mongol men.

Answer 1

Of the choices you provided the correct answer would be "When the Russian army stormed the Mongol Empire and assassinated their ruler."