life involving a daily programme of tasks, meetings with world leaders and celebrities, and—when in Johannesburg—working with the Nelson Mandela Foundation, founded in 1999 to focus on rural development, school construction, and combating HIV/AIDS. Although he had been heavily criticised for failing to do enough to fight the HIV/AIDS pandemic during his presidency, he devoted much of his time to the issue following his retirement, describing it as "a war" that had killed more than "all previous wars"; affiliating himself with the Treatment Action Campaign, he urged Mbeki's government to ensure that HIV-positive South Africans had access to anti-retrovirals. Meanwhile, Mandela was successfully treated for prostate cancer in July 2001. In 2002, Mandela inaugurated the Nelson Mandela Annual Lecture, and in 2003 the Mandela Rhodes Foundation was created at Rhodes House, University of Oxford, to provide postgraduate scholarships to African students. These projects were followed by the Nelson Mandela Centre of Memory and the 46664 campaign against HIV/AIDS. He gave the closing address at the XIII International AIDS Conference in Durban in 2000, and in 2004, spoke at the XV International AIDS Conference in Bangkok, Thailand, calling for greater measures to tackle tuberculosis as well as HIV/AIDS. Mandela publicised AIDS as the cause of his son Makgatho's death in January 2005, to defy the stigma about discussing the disease. Publicly, Mandela became more vocal in criticising Western powers. He strongly opposed the 1999 NATO intervention in Kosovo and called it an attempt by the world's powerful nations to police the entire world. In 2003, he spoke out against the plans for the United States to launch a war in Iraq, describing it as "a tragedy" and lambasting US president George W. Bush and British prime minister Tony Blair (whom he referred to as an "American foreign minister") for undermining the UN, saying, "All that (Mr. Bush) wants is Iraqi oil". He attacked the United States more generally, asserting that "If there is a country that has committed unspeakable atrocities in the world, it is the United States of America", citing the atomic bombing of Japan; this attracted international controversy, although he later improved his relationship with Bush. Retaining an interest in the Lockerbie suspect, he visited Megrahi in Barlinnie prison and spoke out against the conditions of his treatment, referring to them as "psychological persecution". "Retiring from retirement": 2004–2013 In June 2004, aged 85 and amid failing health, Mandela announced