In a post on social media, flight tracking website Flightradar24 noticed that an unusual amount of US tankers are flying to Europe.
About 30 US Air Force tankers left the US on evening of Sunday 15 June 2025 towards East.
According to the tracking website, most of the aircraft are Boeing KC-46A and KC-135 tankers.
These aircraft are designed to refuel other military aircraft mid-flight, greatly extending their range and endurance.
The KC-135 Stratotanker is a military aerial refueling aircraft developed by Boeing and introduced in 1957 with a fuel Capacity of around 200,000 pounds of fuel.
The KC-46A Pegasus is a next-generation aerial refueling tanker developed by Boeing, derived from the 767-2C commercial aircraft.