The Warriors have signed a five-year agreement with Bundesliga club Borussia Dortmund (BVB), as reported in a Fox Sports Asia article.

That year, they won the President's Cup, a feat they repeated in 1978, when they also captured the National Football League title to complete The Double.

In 1990, the Pools Cup went to the SAFSA football team and their convincing displays led to their selection as one of eight clubs to compete in the newly formed S.League.

In 2009, Armed Forces qualified into the AFC Champions League group stage by defeating Thai Champion PEA FC and PSMS Medan of Indonesia in the East playoff thus Armed Forces making Singapore football history by being the first club from Singapore to qualified for the highest club competition in Asia.

Armed Forces were drawn in a group with J.League champions Kashima Antlers, K.League champions Suwon Samsung Bluewings and Chinese Super League runners-up Shanghai Shenhua, and despite being confirmed as the group losers after a 5–0 loss to Kashima Antlers in Japan, they won their first ever point in the competition with a 1–1 draw against Shanghai Shenhua at home.

In 2010, Armed Forces qualified for their second consecutive AFC Champions League group stage by defeating Sriwijaya of Indonesia 3–0 at Jalan Besar stadium in Singapore and won on penalty in the East playoff Final with Muangthong United F.C.

Armed Forces were group with former Champion Gamba Osaka of Japan, Henan Jianye of China and again Suwon Samsung Bluewings of Korea.

In the return leg on 13 April 2010 at Jalan Besar stadium in Singapore, Armed Forces record their first ever historical AFC Champions League win with a 2–1 victory over Henan Jianye.