Thanks to sustained economic growth and key investments in military capabilities, India will face growing demands from within and the international community to seek and play a greater role in global security affairs. The values and interests likely to guide India’s future behavior will be a mixture of old and new, eastern and western. India’s international aspirations have an important pre-history, covered in this chapter’s first section where non-alignment, as idea and practice, is explored for its enduring significance. India’s relevance as a security actor is assessed in terms of its activities and capacity to influence developments within two security zones of major contemporary importance: Afghanistan and the Indian Ocean. Finally, a section on the constraints and challenges examines India’s ability to navigate a multi-polar world, the fallout and gains of nuclearization, the 2008 Indo-US nuclear deal, as well as ‘the weaknesses from within’ in terms of human security.