Aung San Suu Kyi heads to Europe for historic trip out of Burma "It's a very explosive situation and whoever touches the issue will have to walk a very, very fine line," said Aung Naing Oo, a Burma expert with the Vahu Development Institute in Thailand. The Burma government and many Burmese consider the Rohingya to be illegal immigrants and view them with hostility. Even key figures in the democratic movement have come out to say the Rohingya are not one of Burma's ethnic nationalities. A spokesman for Suu Kyi's National League for Democracy party said the former political prisoner had instructed him to work "to help both sides equally" before she left for Europe. Suu Kyi is due to speak at an International Labour Organization conference, address Britain's parliament and receive an Amnesty International human rights award in Dublin from rock star Bono. The veteran activist will also join a "family reunion" in Britain, according to her party and celebrate her 67th birthday on June 19 in the country. For years, since returning to her homeland to care for her sick mother, Suu Kyi did not dare leave - even to see her sons or British husband before his death from cancer in 1999 - fearing the ruling generals would not let her return. She made her first overseas foray for 24 years earlier this month to visit Thailand. President Thein Sein is credited for a series of reforms including releasing hundreds of political prisoners, signing peace pacts with armed rebel groups and welcoming Suu Kyi's party back into mainstream politics. Suu Kyi, the daughter of Burma's independence hero General Aung San, in April won her first ever seat in parliament, prompting Western nations to start rolling back sanctions. Her lecture on June 16 in Oslo to accept the Nobel Prize, which propelled her onto the global stage and spurred decades of support for her party's democratic struggle against authoritarian rule, will be hugely symbolic. But she may also inject a note of caution - on her first overseas trip in more than two decades, Suu Kyi this month warned world business leaders at a meeting in Bangkok against "reckless optimism" over the democratic reforms. "She will reiterate the message that there's still a long way to go in Burma," said Gareth Price, an Asia expert at Chatham House in London. She will also call for responsible trade and investment and support for the rule of law in Burma, as the reforms are reversible. The veteran activist is travelling with her personal assistant, her security chief, the dissident rapper-turned-politician Zayar Thaw and a youth member from her National League for Democracy (NLD) party, Nay Chin Win. There is also a strong personal dimension to the tour, although her party has declined to say whether she will see both her sons, Kim and Alexander Aris, as well as her grandchildren. While Kim has visited his mother in Burma since her release, Alexander has not and he now lives in the United States.