The Duke of Cambridge has just completed three weeks of undercover spy training with some of the top intelligence agencies in the UK and around the world.  

Prince William spent time with Secret Intelligent Service (MI6), the Security Service and the Government Communication Headquarters.

The 37-year-old royal oversaw the work of MI6 first, where he spent a week learning about their work process and developing foreign contacts gathering intelligence.

Then spending a week with MI5, Prince William learnt more about the agency that focuses on national security, in particularly terrorism.

In his final week, the royal member learnt about technology used to disrupt threats of national security.

“Spending time inside our security and intelligence agencies, understanding more about the vital contribution they make to our national security, was a truly humbling experience,” the father-of-three said after completing his training.

“These agencies are full of people from everyday backgrounds doing the most extraordinary work to keep us safe. They work in secret, often not even able to tell their family and friends about the work they do or the stresses they face.

“They are driven by an unrivalled patriotism and dedication to upholding the values of this country. We all owe them deep gratitude for the difficult and dangerous work they do.”

In the past, the royal heir has worked with the British Armed Forces and over 44 weeks of training as an officer cadet in 2006.

Furthermore, the Duke underwent pilot training in 2008 and then undertook helicopter flight training, becoming a full-time pilot with the RAF Search and Rescue Force in 2009.

While it seems Prince William might perfectly match the description of a diligent intelligence worker, the royal will become the Prince of Wales when his father is crowned King, making the idea not possible.

The 37-year-old Duke’s time with the British Armed Forces ended in September 2013.

After working two years as a pilot for the East Anglican Air Ambulance, he retired his position to become a full-time royal member in 2014.