Rare Visit by US C-17 to Moscow: What Was the Purpose of the Flight?

A US Air Force C-17 transport aircraft landed at Moscow’s Vnukovo International Airport on 25 August. Visits by American military aircraft to Russia are extremely rare, raising questions about the purpose of the flight. CBS later reported CIA director Ratcliffe was on board the C-17.

The C-17, registration 07-7181, departed Joint Base Andrews near Washington in the United States for Riga, Latvia, where it arrived on the morning of Monday, 24 August. The following day, the aircraft continued to Moscow.

Also on Monday, US Air Force C-40 02-0042 arrived in Riga from Andrews–Camp Springs at approximately 11:19 UTC. This aircraft is used primarily to transport senior diplomats and military officials. In Riga, the C-40 was parked next to the C-17. An eyewitness also reported seeing vehicles bearing diplomatic licence plates near the aircraft.

The mission code used for the C-17’s flight from Riga to Moscow may provide a clue about its purpose. The code was AAM 5124 71 234, while the aircraft operated under flight number RCH4555. According to the Armchair Admiral account on X, the code suggests that the aircraft was conducting a support flight for the US Secretary of Defense.

Another possible indication of the flight’s purpose comes from a video recorded by a motorist in Moscow. The footage shows a motorcade of three US built vehicles, two of which , black Chevrolet Suburban , appear to have diplomatic licence plates. Based on the 004 on the plate, these plates are US diplomatic license plates issued in Russia. The motorcade was escorted by Russian policecars.

The Cosmos Hotel can be seen in the footage. The location where the convoy was filmed lies directly on the route between Vnukovo Airport and the Kremlin.

Kremlin spokesman Dmitry Peskov said that the Kremlin had no information about the arrival of the C-17.

Later in the day, CBS journalist Jennifer Jacobs reported that CIA Director John Ratcliffe was aboard the aircraft. He remained in Moscow for approximately eight hours before flying back to Riga aboard the C-17.

Minutes after the C-17 landed, the C-40 took off from Riga. It is highly likely that Ratcliffe was aboard that aircraft as well.

Sources indicate that the United States had asked Ukraine not to carry out attacks on Moscow because of a visit.

CIA Director John Ratcliffe reportedly switched from a C-40B VIP jet to a C-17A Globemaster III in Riga before continuing to Moscow on August 25.

The most likely explanation is security. Unlike the C-40B, the C-17 is equipped with defensive systems designed for operations in potentially hostile environments. The aircraft may also have carried a Roll-On Conference Capsule, a secure mobile facility providing encrypted communications and space for classified discussions. The stop at Joint Base Andrews, where these modules are stored, may offer a clue. The C-17 can carry a Roll-On Conference Capsule (ROCC), a self-contained cabin equipped with working and sleeping areas, toilet facilities and secure communications. A ROCC can be configured as a Sensitive Compartmented Information Facility (SCIF), allowing Ratcliffe and his staff to discuss highly classified information and communicate securely with Washington while in transit.

The Roll-On Conference Capsule (ROCC) entered service in March 2026 and replaces the Air Force’s legacy “Silver Bullet” Airstream trailers.

This appears to be the most plausible explanation. The C-17’s stop at Andrews would be consistent with the aircraft picking up such a capsule.

The C-17 could additionally transport security equipment, diplomatic cargo or armoured vehicles, while operating with limited dependence on Russian ground support. The aircraft used for the mission, 07-7181, carried only minimal US military markings, making it less recognisable as a VIP aircraft.

The exact reason for the switch has not been disclosed. However, the C-17 offered greater protection, secure communications and operational flexibility for the sensitive flight from Riga to Moscow.

Another possible reason Ratcliffe travelled aboard the C-17 was the transport of specially equipped vehicles. Footage from Moscow shows his convoy consisted of three American vehicles, which may have been flown in from Riga or even from the United States. If the C-17 was already transporting the vehicles to Moscow, having Ratcliffe travel aboard the same aircraft may have been the most efficient or secure option.