The arrest of an American national in India has yielded numerous key leads in a high-level probe into national security issues. Matthew VanDyke was one of seven foreigners arrested two days earlier in connection with an alleged conspiracy against India.
According to India's main anti-terror authority, the National Investigation Agency (NIA), the accused entered Myanmar illegally through India to train ethnic armed groups there as well as some proscribed groups in India.
Officials discovered that VanDyke had previously been linked to several military battles and activities abroad after scanning his social media footage and mobile phone. The investigation now tries to determine how he arrived in the northeast and with what goal.

The American embassy said that it is aware of the matter but refused to provide any information.
VanDyke: Modern Warfare Operative
VanDyke described himself as a security analyst, documentary filmmaker, and war journalist, but insiders say there are more layers to the mysterious man.
According to accounts, the American was a mercenary military instructor who had previously worked for the US military. He served in Iraq and other conflict zones. He also conducted "special forces-style" training, which included disciplines such as guerrilla warfare, tactical operations, drone use, and current warfare techniques, sources said.

VanDyke's Early Days
VanDyke rose to popularity during the Libyan civil war. After graduating from university, he reportedly set out on a motorcycle tour through North Africa and the Middle East. During this time, he developed friendships with the people of Libya. When the revolution broke out there, he joined the rebel fighters. He was seized and held captive for almost six months. However, he escaped and returned to the United States once the conflict finished in 2011.
He then decided to create a documentary about the Syrian revolution, which began shortly after. However, the executions of two of his friends, US journalists James Foley and Steven Sotloff, by ISIS prompted him to rethink his strategy and focus on training armed forces.

'Appeal to Mercenaries'
During the inquiry, officials discovered multiple tapes in which VanDyke was allegedly heard making statements supporting rebellions around the world. He emphasized that his goal was not to just put foreign fighters into conflict, but to prepare local populations to fight for themselves.
VanDyke had even sent out global requests for mercenaries to join insurgency groups in Venezuela, Myanmar, and Iran.
His arrest in India is significant since he is thought to be tied to armed networks operating in the Northeast. VanDyke is also thought to have been teaching drone operations and new military techniques.

His detention raises serious security concerns, particularly if Indian territory was being exploited as a transit route and if he had any ties to anti-India or banned groups. Espionage and intelligence collecting issues are also being investigated.
Three Major Theories.
Sources said three key ideas are being investigated in conjunction with VanDyke's detention. The first indicates a larger international initiative, possibly a broader campaign to destabilize India. This idea is based on reports that the CIA conducts clandestine operations around the world.Some observers suspect that a Ukrainian-linked network is behind this, particularly since President Volodymyr Zelensky emphasized the importance of special operations in foreign nations. Previously, Ukraine had been seen in crisis zones in Sudan, Mali, Syria, and Libya.
Experts also believe VanDyke is tied to the geopolitical tensions surrounding the Russia-Ukraine war, potentially as a result of India purchasing Russian oil throughout the conflict and retaining strategic relations with the country.