KOLKATA: A bilateral air exercise between the Indian Air Force (IAF) and the United States Air Force (USAF) — Exercise Cope India 23 — is being held at Air Force stations in Panagarh (in West Bengal's Paschim Bardhaman district), Kalaikunda (in West Bengal's Paschim Medinipur district) and Agra in Uttar Pradesh from Monday.The exercise aims to enhance mutual understanding between the two Air Forces...