Tensions spiked between the US and China as both countries sent warships into the Taiwan Strait over the weekend. The U.S. sent the USS Mustin on Saturday sailing through the geopolitically sensitive channel on a routine mission. The action drew a quick rebuke from Beijing, which claims to have shadowed the American warship.

An Israeli submarine openly crossed the Suez Canal last week, in a show of force against Iran, the Kan public broadcaster reported Monday night. The move was approved by Egypt, according to the report, which cited Arab intelligence sources. The submarine reportedly surfaced and faced the Persian Gulf, which lies on the other side of Saudi Arabia.