By Alejandra Jaramillo, Abbas Al Lawati, CNN(CNN) — President Donald Trump has signed an executive order for the US to guarantee the security of Qatar — a significant commitment to a non-NATO, Arab ally. “The United States shall regard any armed attack on the territory, sovereignty, or critical infrastructure of the State of Qatar as a threat to the peace and security of the United States,” the order, which is dated Monday, reads. Trump’s order says the US will “take all lawful and appropriate measures” to defend Qatar. The order marks a significant achievement for Qatar, which – like other wealthy Gulf Arab states – has long sought a stronger US security guarantee. Saudi Arabia and the United Arab Emirates have likewise sought more explicit US security guarantees.