The G20 summit held in Brisbane, Australia on 15-16 November 2014 was a massive logistical exercise involving the arrival of 30 State jets, 4,000 world leader advisors, 3,000 national and international media and the creation of a no-go "Red Zone" for the host city and surrounding suburbs.
Gough Whitlam was the first leader to take into account the urbanisation of Australia, and the need to address social inequality in the fringes of urban centres, according to Paul Keating's Deputy Minister Professor Brian Howe.
Joko Widodo's presidency breaks the mould as he is the first non elite figure in Indonesian politics to be democratically elected, but it remains to be seen how he governs without his party's control in the Indonesian Parliament.
Given the complexity of any potential conflict and the lack of viable alternatives in Iraq and Syria, it may be better to contain the threat of the Islamic State (IS) rather than attempt to destroy it.
The protesters in Hong Kong are driven by frustration at the crises that have hit the territory since Hong Kong returned to Chinese rule and the lack of responsiveness to its needs from the government in Beijing.