SINGAPORE – Australia should deepen its relationships with Asian countries, particularly those in South-east Asia, by investing more in the region and keeping up its defence presence, Senior Minister Lee Hsien Loong said.This will also give Australia more room to pursue its own interests amid intensifying rivalry between the United States and China, he added.“The deeper your relationships are across Asia, the more space you will have to pursue your own interests,” Lee said in the fourth and final instalment of the 2026 Boyer Lectures, which began broadcasting on ABC radio and online on Nov 8.He pointed to “abundant opportunities”…