The two countries are actively involved in several joint projects to enhance each other's military needs, including development and production of the JF-17 Thunder fighter jet, the K-8 Karakorum advanced training aircraft, the Al-Khalid tank, airborne early warning and control (AEW&C) systems, and many other projects. The two countries have held several joint military exercises to enhance co-operation between their armed forces. China is also the largest investor in the Gwadar Deep Sea Port, which is strategically located at the mouth of the Strait of Hormuz.