Quadrilateral Security Dialogue

Quadrilateral Security Dialogue
(Quadrilateral)

Australia, India, Japan, and the United States are highlighted in blue. Former Prime Minister Shinzo Abe intended for the Quadrilateral to establish an "Asian Arc of Democracy."
Established	2007
Dissolved	2008
Type	Inter-governmental security forum
Membership	Member states: Australia, India, Japan, United States

The Quadrilateral Security Dialogue (QSD) was an informal strategic dialogue between the United States, Japan, Australia and India that was maintained by talks between member countries. The dialogue was initiated in 2007 by Prime Minister Shinzo Abe of Japan, with the support of Vice President Dick Cheney of the US, Prime Minister John Howard of Australia and Prime Minister Manmohan Singh of India. The dialogue was paralleled by joint military exercises of an unprecedented scale, titled Exercise Malabar. The diplomatic and military arrangement was widely viewed as a response to increased Chinese economic and military power, and the Chinese government responded to the Quadrilateral dialogue by issuing formal diplomatic protests to its members.

The QSD ceased following the withdrawal of Australia during Kevin Rudd’s tenure as prime minister, reflecting ambivalence in Australian policy over the growing tension between the United States and China in the Asia-Pacific. Following Rudd's replacement by Julia Gillard in 2010, enhanced military cooperation between the United States and Australia was resumed, leading to the placement of US Marines near Darwin, Australia, overlooking the Timor Sea and Lombok Strait. India, Japan, and the United States continue to hold joint naval exercises through Malabar.

In the early twenty-first century, the strategic preoccupation of the United States with Iraq and Afghanistan served as a distraction from major power shifts in the Asia-Pacific, brought about by increased Chinese economic power, which undermined America’s traditional role in the region. In the long term the United States has sought a policy of "soft containment" of China by organizing strategic partnerships with democracies at its periphery. While US alliances with Japan, Australia and India now form the bulwark of this policy, the development of closer US military ties to India has been a complex process since the collapse of the Soviet Union. Australian commentaries have shown mixed attitudes to a Quadrilateral security arrangement isolating China.