For more than 70 years she was their Commander-in-Chief, the woman they swore their allegiance to and vowed to serve unceasingly.
And every moment since her death, members of the British Armed Forces have shown their devotion and care for the Queen.
From her final journey across Scotland to her passage by air to RAF Northolt and onwards to Buckingham Palace and Westminster Hall, members of the military have flanked, flown and guarded her coffin.