World leaders Meet at NATO Summit in Chicago

The video begins with a welcome to attendees in Chicago, sharing experiences from the previous night. It then discusses the Strategic Partnership agreement signed with Afghanistan, ensuring support as they stand independently. The speaker thanks fellow leaders and partners, emphasizing the leadership's role in advancing goals and responsibly ending the war. The video concludes with closing remarks and expressions of gratitude.

What was the atmosphere like for those who were joining for the first time according to the text?

What is the overall message the speaker is trying to convey about the ongoing efforts?