1)
What do we learn from "Apil Hamonecha"?
1.
Malbim: Afterwards, Melech Bavel came to Egypt and killed multitudes.
2)
Why does it add "v'Shaddu Es Ge'on Mitzrayim v'Nishmad Kol Hamonah"?
1.
Malbim: This is the final Churban, in which all of them were destroyed.