The US Air Force (USAF) is offering a $10,000 reward for information about the theft of £181,000 of military equipment at RAF Lakenheath.
The items stolen from the base include advanced combat helmets, modular sleep systems, extreme cold weather boots and interceptor body armour.
The items were stolen from building 1068 on the base between 2011 and 2012.
The USAF Office of Special Investigations is offering $10,000 for information leading to the identification, arrest and successful conviction of those responsible.
Anyone with information should contact the office on 01638 547257.