Gulf Arab States
Major General Abdolrahim Mousavi, head of Iran's army, said there would be no Israel in 25 years. His Arab rivals in the Persian Gulf appear to differ.
In 2017, Kuwait and Bahrain carried out their first state-sanctioned killings in several years.
Traditional allies are willing to cautiously overlook Trump's rhetoric on Muslims and terrorism if he opposes Iranian interests in the region.
Sunday's airstrikes by Gulf Arab states were in coordination with a ground offensive further west.
The Camp David summit is just the start in a long process needed to calm a troubled region.
At a high-stakes meeting at Camp David this week, the president will meet with leaders of the Gulf Arab states.