Aung San Suu Kyi led the National League for Democracy (NLD) to a majority win in Myanmar's first openly contested election in 25 years in November 2015.
The win came five years to the day since she was released from 15 years of house arrest.
Although the Myanmar constitution forbids her from becoming president because she has children who are foreign nationals, Ms Suu Kyi is widely seen as de facto leader.
Her official title is state counsellor. The president, Htin Kyaw, is a close confidante.
The 70-year-old spent much of her time between 1989 and 2010 in some form of detention because of her efforts to bring democracy to then military-ruled Myanmar (also known as Burma) - a fact that made her an international symbol of peaceful resistance in the face of oppression.
In 1991, "The Lady" as she's known, was awarded the Nobel Peace Prize and the committee chairman called her "an outstanding example of the power of the powerless".
However, after her release and subsequent political career, Ms Suu Kyi has come in for criticism by some rights groups for what they say has been a failure to speak up for Myanmar's minority groups during a time of ethnic violence in parts of the country.
Re-entering politics
She was sidelined from Myanmar's first elections in two decades on 7 November 2010 but released from house arrest six days later.
Her son Kim Aris was allowed to visit her for the first time in a decade.
As the new government embarked on a process of reform, Aung San Suu Kyi and her party rejoined the political process.
When by-elections were held in April 2012, to fill seats vacated by politicians who had taken government posts, she and her party contested seats, despite reservations.
"Some are a little bit too optimistic about the situation," she said in an interview before the vote. "We are cautiously optimistic. We are at the beginning of a road."
She and the NLD won 43 of the 45 seats contested, in an emphatic statement of support. Weeks later, Ms Suu Kyi took the oath in parliament and became the leader of the opposition.
And the following May, she embarked on a visit outside Myanmar for the first time in 24 years, in a sign of apparent confidence that its new leaders would allow her to return.
Part from:
http://www.bbc.com/news/world-asia-pacific-11685977
What:Aung San Suu Kyi led the National League for Democracy to a majority win in Myanmar's first openly contested election
Who:Aung San Suu Kyi
When:November 2015
Where:Myanmar
Why:Not given