Bangkok, Thailand (CNN) -- Myanmar opposition leader Aung San Suu Kyi will make her first trip outside the country in more than two decades when she visits Thailand next week to attend a regional conference, a spokesman for her party said Thursday.

Suu Kyi, a pro-democracy campaigner who endured years of house arrest under Myanmar's military rulers, will travel to the Thai capital of Bangkok on Monday where she will participate in the World Economic Forum on East Asia, said Nyan Win, a spokesman for the National League for Democracy.