A photograph of George H.W. Bush's dog has been shared on social media and it is utterly heartbreaking.
The image shows the former President's service dog lying next to his coffin during a service in Houston.
Known as Sully, the golden Labrador can be seen lying just a few metres in front of Bush's casket, which is draped in the red, white, and blue of America's flag.
The caption simply says: "Mission complete."
Bush's son and 43rd President George W. Bush shared the photograph and wrote: "As much as our family is going to miss this dog, we're comforted to know he'll bring the same joy to his new home as he did to 41."
Though they have only been together for a few months - Sully was given to the 41st President in June this year, after his wife Barbara Bush died - the photograph clearly shows how the pair struck up a strong bond together.
Sully had only been with the former President since June. Credit: Instagram
According to CNN the specially trained pooch will even travel with the coffin as it makes its way to Washington D.C. today.
A photograph shared on Bush's Twitter page shows a photograph of the couple alongside another former President, Bill Clinton, from the day Sully came to live with him.
The tweet said: "A great joy to welcome home the newest member of our family, 'Sully', a beautiful - and beautifully trained - lab from America's VetDogs.
"Could not be more grateful, especially for their commitment to our veterans."
Speaking to the media, America's VetDogs said Sully will stay at their New York headquarters over the festive season and then undergo physical and occupational therapy.
Since the dog began living with Bush, an official Sully Instagram account has shared candid photographs of the two together.
The specially trained lab will travel with Bush's casket to Washington D.C today. Credit: Instagram
Following news of Bush's death, John Miller, President and CEO of America's VetDogs, said: "'Our thoughts and prayers are with the entire Bush family during this difficult time.
"'It was truly an honour to have provided service dog Sully to be by the president's side for the past several months.
"As a true patriot and a visionary, President Bush will forever be viewed by people with disabilities and their families as a hero through his efforts to enact the Americans with Disabilities Act.
"We are forever grateful to his service to the American people."
In his youth Bush served in World War II as a naval navigator and was a Texas oil pioneer.
A statement was released from his office, it said: "George Herbert Walker Bush, World War II naval aviator, Texas oil pioneer, and 41st President of the United States of America, died on November 30, 2018.
"He was 94 and is survived by his five children and their spouses, 17 grandchildren, eight great grandchildren, and two siblings. He was preceded in death by his wife of 73 years, Barbara; his second child Pauline Robinson 'Robin' Bush; and his brothers Prescott and William or 'Bucky' Bush. Funeral arrangements will be announced as soon as is practical."
Featured Image Credit: Instagram