The Leap Day Policy, also known as the Leap Day Ultimatum or the Adelaide Policy due to the city in which the speech was delivered, was a major policy address delivered by Australian Prime Minister Paul Hogan in Adelaide on February 29, 1996, in which he announced Australia's pending intervention in the Banjarese Civil War and, above and beyond that, "a comprehensive, sophisticated, and permanent policy of counter-jihadism" against various jihadist insurgencies throughout the Indonesian Archipelago. The speech was seen as a major turning point in Australian foreign policy history and, to a lesser extent, domestic politics, and preceded the beginning of Operation Monsoon Wind - the air campaign aspect of the Bornean Intervention - on March 10.
The Leap Day Policy was articulated in response to increasing Australian public anger at atrocities in the various post-colonial states in the Malay Archipelago, specifically the region commonly referred to as Indonesia or Nusantara by pan-Malay nationalists. Following the collapse of the Sultanate of Banjar in late 1992, the Darul Islam organization in Kalimantan - the Malay name for Borneo - had declared the theocratic Islamic republic Negara Islam Kalimantan, or NIK, creating a third state of that variety in Nusantara alongside Java and Sulawesi, areas which were already deeply embroiled in long-running sectarian and ethnic conflicts. Banjar's collapse was particularly violent, however, and saw Darul Islam forces in mid-1993 beginning a "social cleanse" of enemies of the state, beginning with academics and anti-government activists but soon expanding to moderate Banjarese and, in particular, tribal Dayaks in the hinterlands who were more than two-thirds Christian. By late 1994, the persecution campaign against the Dayaks had evolved into a full-blown genocide; while about ten thousand Dayaks were killed in 1993, close to seventy thousand died in the last six months of 1994 alone and several hundred thousand were slaughtered across southern Kalimantan in 1995. International condemnation of the civil war and support for anti-NIK insurgents ballooned in 1995, culminating in Australia imposing an international embargo on Banjar and Sulawesi in December of 1995 and the Kaching Agreement between Australia, Sarawak, Brunei and Malaya to coordinate an anti-Darul Islam policy. The next month, a Red Cross humanitarian aid flight was shot down near Banjarmasin on January 2 and on January 15, two Australian journalists - ABC war correspondent Melissa Howard and freelance war photographer Madeline Harris - were kidnapped, brutally tortured and murdered with their bodies dumped in a river along with their driver and two translators by NIK police, largely viewed as the final straw for the Australian government. Refusals by the NIK to suspend its genocide of the Dayaks and anti-government Banjarese resulted in Hogan's unilateral decision to announce an intervention in Banjar to put an end to the violence.
The Leap Day Policy marked a paradigm shift in Australian foreign policy, which had since the final independence of most of the Dutch East Indies in 1973 and 1977 pursued a strict policy of soft power influence rather than military intervention despite postcolonial conflicts emerging more or less immediately across Nusantara. Hogan, though a moderate within his governing National Party who had successfully won reelection in 1993 by shifting his party to the center, was perceived as taking a more hawkish stance internally and externally and as the ultimatum occurred close to the midpoint of his government (September 1991 - October 2001) it is viewed as an epochal point in the Hogan ministry, where it shifted firmly to a government of the right. Interventions in Nusantara throughout the late 1990s into the early 2000s are largely seen as having polarized Australian society on military affairs, immigration, and culture, with Islamophobia and anti-Malay sentiments rising sharply, particularly after terrorist attacks on Australian soil after Darul Islam declared a jihad and fatwa against Australia. Commentators have noted that Australian opinion was stirred not by the slaughter of hundreds of thousands of Dayaks but rather "the death of two blonde, blue-eyed Australian women; the martyrdom of two journalists by a fearsome 'other' in what Australians see as the savage peripheral jungles that separate their home from Asia came to be viewed as a civilizational struggle between European Australia and the barbaric Oriental enemy on the Australian Right."