The United States has not attacked India over its nuclear program, primarily because it does not pose a direct threat to US national security. India's nuclear program, which includes a sophisticated three-stage plan for energy independence, is seen as a credible deterrent. The US response to India's nuclear tests in 1974 and 1998 was limited to economic sanctions rather than military action, as US intelligence failed to provide early warnings of the tests. India's military strength and its status as a stable democracy further influenced the US decision to shift from sanctions to a strategic partnership, exemplified by the 2005 U.S.-India Civil Nuclear Agreement. In contrast, the US has taken a more aggressive stance towards Iran, whose nuclear program has raised alarms due to its potential for weaponization. The US perceives Iran as a threat due to its regional hostility and nuclear ambitions, leading to military action when diplomatic efforts failed. This distinction highlights the complex geopolitical dynamics surrounding nuclear programs in different countries.