The prime minister says peaceful democratic processes can't be taken for granted, following the attempted assassination of former US president Donald Trump.
The local share market has closed at its highest level ever after a bigger-than-expected inflation drop in the United States firmed bets the Federal Reserve will cut interest rates in September.
Deputy Prime Minister Richard Marles will head to the UK following a key NATO security summit in the first ministerial visit since Labour swept to power there.
The ASX has clawed back most of its morning losses to finish 0.2 per cent lower after the US central bank chairman's testimony failed to sway rate expectations.
Further support for Ukraine is set to be announced at a key NATO summit as Kyiv calls for aid after a Russian missile barrage struck a children's hospital.