I think it is either the Feast of Passover, or Feast of Weeks. But, I'm pretty sure it's probably the Feast of Passover. Hope this helps you!
According to this quotation, President Kennedy wanted to "(1) assert United States leadership in world <span>affairs" as he evokes somewhat of a moral responsibility. </span>
It remade Europe after the downfall of French Emperor Napoleon I and tried to restore old boundaries as well as resizing the main powers so they could balance each other and remain at peace.