Australia has been a member since 10 May 2014
Bangladesh has been a member since 04 Jul 2014
France has been a member since 10 Mar 2015
India has been a member since 28 Feb 2015
Indonesia has been a member since 10 Nov 2014
Iran has been a member since 16 Mar 2015
Kenya has been a member since 09 Dec 2015
Maldives been a member since 22 Oct 2014
Pakistan has been a member since 27 Oct 2014
Thailand has been a member since 19 Dec 2014
Timor Leste has been a member since 04 Dec 2014
Qatar has been a member since 29 Jun 2021
Spain has been an observer since 13 Jan 2016
Oman has been an observer since 20 Feb 2026
The Indian Ocean Naval Symposium (IONS) is a voluntary initiative that brings together the navies of the Indian Ocean littoral states. Through dialogue, co-operation, and shared understanding, IONS fosters regional maritime security and stability across one of the world’s most strategic oceanic regions.
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