As Beijing intensifies its effort to further isolate Taiwan diplomatically, Taipei is actively but discreetly broadening security ties with regional powers beyond its long-standing relationship with the United States.

From efforts to share intelligence on China's military with India and the prospect of engaging Japanese experts in its submarine program, Taipei's push is gradually bearing fruit despite sensitivities surrounding relations with Taiwan, according to government officials, military attaches and diplomats.

As well as India and Japan, Taipei has targeted Australia and Singapore.