Opposition leader Brendan Nelson has used a pre-Anzac Day morning tea to warn against the threat posed by Muslim extremists.
The former Defence Minister has addressed about 40 returned service personnel at Parramatta RSL Club, saying national security is one of the five main challenges facing Australia.
Dr Nelson says an attack on home soil remains a real possibility from people who oppose the values most Australians hold dear.
“Universal human ideals of respect for other human beings, respect for women, respect for religious freedom, respect for political freedom and choice all of those things are under threat from people that have evil intentions and think nothing of taking innocent life,” he said.