Answer:
I think Anne feels annoyed with Peter, since he cheated on her with Hitler. She talked to Stalin about her problems. Stalin told her that he could help by taking Hitler out. so she did so.
Here are 3 salient features of the Reign of Terror:
#1 is the era of Reign of Terror lasted from 1793-1794
#2 is the National Convention replaced the government
And finally #3 is Guillotine was used to execute people
Hope I helped! God bless and stay safe!
-Eli <3