Burma's opposition leader Aung San Suu Kyi has underlined her desire to become the country's president, but says the country's constitution is the "worst... in the world to amend".

"Well I'm told that this is the worst constitution in the world to amend. First of all it has to be, any... it's not all the points of the constitution, but the major ones, if you want to change them. More than 75 per cent of the members of both legislatures have to vote for it. And that's not the end of the story and then it has to be put to a referendum and it has to be approved by more than 50 per cent of those who are on the... those who are eligible to vote. So that's a very difficult process. Don't forget that 25 per cent of the members of both legislatures are military appointees, unelected military appointees. So in order to get more than 75 per cent, first of all - all the civilian seats will have to be filled and all the civilian representatives would have to agree that they want to amend the constitution. And then as I keep saying at least one brave soldier must say 'I will side with the civilian representatives'. So it's very very difficult, but it's not impossible. And I think it was in an RAF outfit somewhere I heard that during the Second World War they had a motto which was 'we do the impossible every day, miracles must take a little longer", opposition leader, Aung San Suu Kyi said.