Normal life in Manipur was drastically affected between March 17 and 19, 2008 when 15 migrants were killed by unidentified armed militants. While there have been accusations that local militants might have been behind the killings, militant groups have categorically denied their involvement. There is likelihood that foreign terrorist groups were involved in the killings to create ethnic apprehension and conflict between migrants and natives.

The emergence of several Islamic militant groups in North-East India and their ability to forge close ties with the region's most violent militant groups like the United Liberation Front of Asom [ULFA] and other foreign-based Islamic groups pose a major security threat for the region. Islamic militancy started in North-East India in the wake of the Babri Masjid demolition and the subsequent communal disturbances as well as because of Manipur's infamous Meitei-Muslim riot in 1993.

The arrest of three United National Liberation Front (UNLF) leaders at the Indira Gandhi International Airport in New Delhi on October 2, 2006 necessitates an evaluation of the external linkages of Meitei militant outfits. Apart from having close connections with their sister outfits in the north-eastern states, major Meitei outfits like the People's Liberation Army (PLA) and the UNLF have been attempting to revamp themselves by tying up with foreign outfits and agencies directly or indirectly.