Warning that China is becoming very aggressive, and would soon step into Afghanistan after friendly overtures to Iran and Turkey, Gen Bipin Rawat on Wednesday said India needs an integrated national security architecture to deal with two hostile neighbours, non-contact technological warfare and internal security challenges.Warning that China is becoming very aggressive, and would soon step into Afghanistan after friendly overtures to Iran and Turkey, Gen Bipin Rawat on Wednesday said India needs an integrated national security architecture to deal with two hostile neighbours, non-contact technological warfare and internal security challenges.