The US State Department on Thursday issued a "worldwide caution security alert" for overseas American citizens, citing increased tensions in various locations around the world and the potential for extremist attacks and violence against Americans. The alert did not single out any specific global event or war but comes amid an ongoing conflict in the Middle East.
source https://timesofindia.indiatimes.com/world/us/us-state-department-issues-worldwide-caution-for-overseas-american-citizens/articleshow/104562749.cms
source https://timesofindia.indiatimes.com/world/us/us-state-department-issues-worldwide-caution-for-overseas-american-citizens/articleshow/104562749.cms