Since November 2016 Hannes Hanso is the Chairman of the National Defence Committee of the Riigikogu, Parliament of Estonia. In addition to that he is a member of the Science and Technology Committee in NATO Parliamentary Assembly. He has previously served as the Chairman of the Foreign Affairs Committee of the Riigikogu and as the Minister of Defence of the Republic of Estonia. Before being elected as an MP, he worked for the International Centre for Defence Studies, the Representation of the European Union in China and Mongolia, the Ministry of Defence and as an adviser to the Minister of Finance. 

He is mostly interested in foreign and security policy. He has visited tens of European and Asian countries in connection with his work, and he feels at ease in international company. He considers it important to expand the foreign policy reach of Estonia to the rapidly developing and strategically important regions of the world, first of all in order to develop business relations.