Singapore will hold a Leaders' Retreat in September to celebrate 50 years of "good, wonderful" bilateral relations with Indonesia.

Senior Minister of State for Defence and Foreign Affairs Dr Mohamad Maliki Osman said on Monday that plans to hold the retreat to commemorate "this very important year" have begun.

"Singapore is very happy with the excellent bilateral relations between Singapore and Indonesia," he told reporters after calling on Indonesian Foreign Minister Retno Marsudi at the Indian Ocean Rim Association (Iora) Council of Ministers' Meeting in Jakarta.

Dr Maliki noted that the two countries had worked together in many sectors over the past five decades.

The next step is to encourage the younger generation to continue the journey.

"We know that the earlier generation share a lot of history together, and moving forward, the younger generation should also try to understand history and create their own history together, so that the relationship between Indonesia and Singapore can continue to go on to greater heights," he said.

Both countries have reaffirmed their commitment to boost bilateral ties, particularly on cooperation on counter-terrorism, following a meeting between Coordinating Political, Legal and Security Affairs Minister Wiranto and visiting Deputy Prime Minister Teo Chee Hean on Monday.

Besides Mr Wiranto, Mr Teo also met Coordinating Minister for Maritime Affairs Luhut Pandjaitan, Minister for Defence Ryamizard Ryacudu, House Speaker Setya Novanto and other lawmakers to exchange views on regional and international developments.

Mr Teo and Mr Maliki attended a dinner hosted by President Joko Widodo on Monday night for the Iora leaders.

Leaders and senior officials from the 21 member countries are meeting at the Iora Business Summit, which ended yesterday.