The final question to US president Donald Trump came from Sky's security and defence editor Deborah Haynes.
She put to him that Mark Rutte, the NATO secretary-general, called him the "daddy" earlier, and asked if he regards American's allies as children.
Trump jumped in to say of Rutte: "He likes me, I think he likes me. If he doesn't, I'll ley you know. I'll come back and I'll hit him hard, okay.
"He did it very affectionately - 'daddy, you're my daddy'."
Deborah tried to move back onto the substantive question, and if he hopes they will be able to defend Europe alone.
The US president said: "I think they need help a little bit at the beginning, and I think they'll be able to. And I think they're going to remember this day.
"And this is a big day for NATO, this was a very big day."
That was in reference to allies agreeing to increase defence spending to 5% of GDP.
Asked finally by Deborah if NATO allies will be able to defend themselves without the US, Trump said to ask the NATO secretary-general.