Aung San Suu Kyi will appear before the International Court of Justice (ICJ) to contest a case filed by Gambia accusing Myanmar of genocide against its Rohingya Muslim minority, her government says.
More than 730,000 Rohingya Muslims have fled to neighbouring Bangladesh since a 2017 crackdown by Myanmar's military, which UN investigators say was carried out with "genocidal intent".
Buddhist majority Myanmar denies accusations of genocide.
Gambia, a tiny, mainly Muslim West African state, lodged its lawsuit after winning the support of the 57-nation Organisation for Islamic Cooperation (OIC). Only a state can file a case against another state at the ICJ.
"Myanmar has retained prominent international lawyers to contest the case submitted by Gambia," the ministry for state counselor Suu Kyi's office said in a Facebook post.
"The State Counselor, in her capacity as Union Minister for Foreign Affairs, will lead a team to the Hague, Netherlands, to defend the national interest of Myanmar at the ICJ," it said, giving no further details.
Military spokesman Brigadier General Zaw Min Tun told Reuters the decision was made after the army consulted with the government. "We, the military, will fully cooperate with the government and we will follow the instruction of the government," he said.
More than 700,000 Rohingya fled Myanmar in 2017. Source: AAP
A spokesman for Suu Kyi's party, the National League for Democracy, said she had decided to take on the case herself.
"They accused Aung San Suu Kyi of failing to speak out about human rights violations," spokesman Myo Nyunt said. "She decided to face the lawsuit by herself."
Both Gambia and Myanmar are signatories to the 1948 Genocide Convention, which not only prohibits states from committing genocide but also compels all signatory states to prevent and punish the crime of genocide.
The ICJ has said it will hold the first public hearings in the case on December 10 to 12. The court has no means to enforce any of its rulings.
Suu Kyi, a longtime democracy activist who won the Nobel peace prize for her defiance of the military junta, swept to power in Myanmar after a landslide election win in 2015 that ushered in the country's first fully civilian government in half a century.
But her reputation has been sullied by her response to the plight of the Rohingya, a persecuted Muslim minority living in the western Rakhine state.
She has publicly blamed the crisis on Rohingya "terrorists", referring to militants who attacked security posts in August 2017, prompting the army crackdown, and has branded reports of atrocities, including gang-rapes and mass killings, as fake news.
