The prime minister has doubled down on a promise not to introduce new taxes as Labor pledges to throw more than $500 million at Veterans' Affairs to fix a backlog in support claims.

Australian soldier Jack Jensen wrote to his girlfriend in February 1919, "I must ask you to release me from my promise".

Australian conservation groups have started an ambitious campaign to plant 100,000 trees in an effort to neutralise the country's carbon footprint.

Todd Payten admits he faces a welcome selection headache after Scott Drinkwater excelled in North Queensland's 30-4 NRL demolition of Gold Coast.

Twitter says it will no longer allow advertisers on its site who deny the scientific consensus on climate change, echoing a policy already in place at Google.

The Liberals have tried to pivot from criticism over its handling of a Chinese security pact with the Solomon Islands to spruiking its economic record on the campaign trail.