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India on Monday successfully carried out a night launch of the nuclear-capable Agni-4 ballistic missile from the APJ Abdul Kalam Island in Odisha, marking a significant boost to the country's military capabilities. In a brief statement, the defence ministry said the "training launch" of the missile was carried out at around 7:30 pm. It is learnt that the missile has a range of around 4,000 kilometres, and it is largely seen as part of India's deterrence against China. The defence ministry said the successful test of Agni-4 reaffirms India's policy of having a 'credible minimum deterrence capability'.
"A successful training launch of an Intermediate-Range Ballistic Missile, Agni-4, was carried out at approximately 1930 hours on June 6 from APJ Abdul Kalam Island, Odisha," the ministry said. "The successful test was part of routine user training launches carried out under the aegis of the Strategic Forces Command," it said. The ministry said the launch validated all operational parameters as also the reliability of the system.
What is the synonym of the word ' aegis ' as given in the question?