Harold Holt

Holt's government increased Australian troop commitments to the Vietnam War, including the introduction of conscription for overseas service. He visited the US and famously declared Australia was 'all the way with LBJ,' strengthening the alliance with President Lyndon B. Johnson.

Holt's government introduced the Migration Act 1966, which began dismantling the White Australia policy by allowing non-European migrants to apply for citizenship after five years of residence. This was a significant step toward a non-discriminatory immigration policy.

Harold Holt became Prime Minister of Australia on January 26, 1966, succeeding Robert Menzies. He led the Liberal-Country Party coalition and continued many of Menzies' policies, including strong support for the United States in the Vietnam War.

Harold Holt disappeared while swimming at Cheviot Beach near Portsea, Victoria, on December 17, 1967. Despite an extensive search, his body was never recovered. He was presumed drowned, and his death led to a period of national mourning and political uncertainty.