The final units are likely to arrive by the end of 2026, the deputy chief of air staff has said India has confirmed the dispatch of a fourth set of S-400 missiles from Russia as part of a $5.43 billion deal. The deputy chief of air staff, Air Marshal Awadhesh Kumar Bharti, said on Thursday the next set of S-400 Triumf air defense systems meant for the Indian Air Force (IAF) has been sent, and that “we should be having [it] with us within a month,” Bharti said. The fifth and final units are due