President Donald Trump is heading to France for the annual summit of the Group of Seven nations on Monday, where Trump will meet with world leaders who have been targeted by his criticism or caught in awkward negotiations.

The G7 meeting also comes after the U.S. and Iran reached a deal to end the nearly four-month war in the Middle East to an end. The war has sparked political concerns and economic uncertainty worldwide, as it shocked the global energy market and caused inflation to skyrocket in many major economies.

Trump will be joining his six fellow leaders, who represent Canada, France, Germany, Italy, Japan, and the U.K., some of whom he has publicly criticized or with whom he has had uncomfortable exchanges.

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There may be plenty of moments at the summit for political disagreements, as the leaders will be spending three days discussing the new agreement to end the Iran war, Chinese trade policy, and Russia’s war in Ukraine, as reported by AP.

According to The Guardian, citing reports out of Washington, Trump may not be arriving at the summit in the best mood after his fellow G7 leaders opposed the Iran war and didn’t join Trump’s earlier plan to reopen the Strait of Hormuz, the vital oil shipping waterway, by force.

Here are some of the moments of tension-filled exchanges or criticism between Trump and his fellow G7 leaders in the past: