The president of Indonesia was given a ceremonial welcome at Horse Guards Parade in London this morning.
The Foreign Secretary William Hague underlined the importance of British trade with Indonesia today as President Yudhoyono started a "landmark visit" to the UK.
Landmark State Visit to UK of President Yudhoyono of Indonesia started today
UK exports of goods and services to Indonesia were up 28% in 2011. Stronger trade benefits both our countries
Indonesian President Susilo Bambang Yudhoyono and the First Lady are paying an official visit to Buckingham Palace today.
The Queen and Duke of Edinburgh formally greeted The President and Mrs Yudhoyono at Ceremonial Welcome Horseguards.
This was followed by state carriage procession along the Mall to Buckingham Palace. The Queen will give a State Banquet at the Palace this evening.
The President of Indonesia will be welcomed to Britain by the Queen and the Duke of Edinburgh today.
Susilo Bambang Yudhoyono, 59, will arrive in London with first lady Ani Bambang Yudhoyono for a ceremonial welcome at Horse Guards Parade at the start of their three-day state visit.
They will later join the Queen and Prince Philip for a state carriage procession along the Mall to Buckingham Palace, escorted by the Sovereign's Escort.
During the afternoon Dr Yudhoyono will attend a private lunch at Buckingham Palace, where he and his wife will stay throughout their visit.
They will visit Westminster Abbey where the president will lay a wreath at the Grave of the Unknown Warrior.
That afternoon they will visit the Prince of Wales and the Duchess of Cornwall at their London home, Clarence House, to take tea and discuss Charles' charities.
The president will meet Prime Minister David Cameron and later receive calls at the palace from Labour leader Ed Miliband and Deputy Prime Minister Nick Clegg.