• The US State Department ordered the departure of nonemergency personnel and their families from Saudi Arabia.
• The move comes as Iranian-backed Houthis continue to attack Saudi Arabia.
• The US government may issue ordered departures from other Gulf embassies.
• Saudi Arabia's air defense intercepted a drone targeting an oilfield, resulting in casualties.

This development may indicate a significant escalation of tensions in the Gulf region, which could have far-reaching implications for global security and stability. The US decision to evacuate personnel suggests a heightened concern for safety, which could impact diplomatic relations and military operations in the area.