Will, Kate and Harry were joined by Belgian King Philippe and Queen Mathilde, U.S. Secretary of the Army John M. McHugh and the presidents of France, Germany and many other countries.
French President François Hollande used the occasion as an opportunity to talk about the current conflicts unfolding across the world.
"When in Gaza a murderous conflict has been going on for over a month… we cannot stay neutral, we have an obligation to act," Hollande said, according to the Wall Street Journal. "Europe has to take its responsibility to act, along with the U.N. We cannot simply invoke a cult of memory, we have to take our responsibilities."
Prince William, who has previously talked about the Ukraine/Russia conflict, echoed those sentiments in his speech.
"The peace that we here enjoy together as allies and partners does not simply mean no more bloodshed — it means something deeper than that," William said, according to ABC News. "The fact that the presidents of Germany and Austria are here today, and that other nations — then enemies — are here too, bears testimony to the power of reconciliation.
"Not only is war between us unthinkable, but former adversaries have worked together for three generations to spread and entrench democracy, prosperity and the rule of law across Europe, and to promote our shared values around the world," he added. "The events in Ukraine testify to the fact that instability continues to stalk our continent."
And you'll see personalized content just for you whenever you click the My Feed .
SheKnows is making some changes!