fall upon
US /fɔːl əˈpɑːn/
UK /fɔːl əˈpɑːn/

1.
cair sobre, atacar
to attack someone or something suddenly and violently
:
•
The wolves fell upon the deer in the forest.
Os lobos atacaram o cervo na floresta.
•
The enemy army fell upon the unsuspecting village.
O exército inimigo caiu sobre a aldeia desavisada.
2.
recair sobre, caber a
to become the responsibility or duty of someone
:
•
The task of organizing the event fell upon him.
A tarefa de organizar o evento recaiu sobre ele.
•
A great responsibility falls upon those in leadership positions.
Uma grande responsabilidade recai sobre aqueles em posições de liderança.