On 6 February 1976, after completing six months of basic training, he was enrolled at the British Army's Royal Military Academy Sandhurst (RMAS) in England, United Kingdom, and was made an officer cadet.

[9] He, along with Yasmin Umar and Abdul Halim Mohd Yussof, visited the recently arrived RSS Steadfast at Muara Naval Base during the opening ceremony of Exercise Pelican on 3 June 2008.

[10] After that, on 10 November 2009, Major General Halbi made his last visit to Singapore, which was concluded with a meeting with Desmond Kuek and an inspection of the Guard of Honour.

[2] On 18 November 2015, Minister Halbi met with Khairy Jamaluddin during the ASEAN+ Young Leaders Summit in order to tighten relationship between Brunei and Malaysia, to find ways to improve youth development and sports in both countries.

[21] Japan's Defence Minister Nobuo Kishi congratulated Halbi on his newly appointed position, followed up by raising concerns on regional security, the issues caused by the 2022 Russian invasion of Ukraine in international order, and strengthening of relationships between the two nations militarily on 21 June 2022.