Good comments from European leaders
More reaction from other European leaders now, firstly from Poland's Prime Minister Donald Tusk.
He has posted on X to say "Europe has woken up", alongside a photograph of the leaders at the summit earlier today.
Tusk says those present "all speak with one voice about helping Ukraine, the need for close transatlantic cooperation and strengthening the eastern border".
Italy's prime minister, Giorgia Meloni, has given her reaction too, and says "the one thing we absolutely cannot afford is a peace [in Ukraine] that does not last".
She continues: "We must be very careful when assessing what is being proposed, particularly in response to this key question: could this peace be violated? Because, unfortunately, we have seen this happen in the past."
And there have been words on X too from outgoing German Chancellor Olaf Scholz, who mentions that being "transatlantic allies" in Nato remains "the key for security" in the US, Canada and Europe.
He says the alliance has been strengthened in recent years "with new members and defence spending" and that is "the path we will continue to follow in the future as well".
Dutch Prime Minister Dick Schoof, also on X, reiterates that Europe "must take a greater role in ensuring safety for our continent" and adds that "good transatlantic relations are also indispensable".