Prince William's appearance on Wednesday set him apart from some of his European counterparts. The Prince of Wales was not wearing a military uniform. The choice may have come as a surprise to those familiar with William's own military background. Before taking on royal duties full-time, he served in the British Armed Forces and has previously worn a uniform for major state occasions.

At the funeral of Queen Elizabeth II in 2022, for example, he appeared in his Royal Air Force uniform, complete with the Garter Sash and Pilot Wings. This time, however, there was a specific reason behind his more understated appearance. He does not hold the Order of St Olav, Norway's highest honour, and therefore did not wear a military uniform on the occasion.

The prestigious order is awarded in recognition of exceptional service and achievements on behalf of Norway, while foreign heads of state may also receive the honour as a diplomatic courtesy. Official guidelines and protocol strictly dictate the appropriate attire for such high-profile international gatherings, ensuring that traditions are duly respected by all attendees.

Instead, the future King opted for a classic black suit that reflected the solemn nature of the occasion and a continued sign of respect. Observers noted that his dignified presence and choice of formal civilian attire blended well with the diplomatic ambiance of the high-level event, maintaining a balance between personal status and protocol requirements.