Despite Hong Kong's tiny size, it maintains one of the most powerful and technologically advanced air arms in Asia, Hong Kong's Air Force is centred around the threat of Chinese invasion, which as been a persistent issue since Hong Kong's independence in 1949, as a result of this, the bulk of the HKAF's efforts to modernise have been directed at its frontline combat aircraft and helicopters, the main focus being replacing the elderly F-5HK-S multirole fighter, which make up the nations primary line of defence against a Chinese invasion, these aircraft will be replaced by a combination of F-35 stealth fighters as well as Aermacchi M-346 attack aircraft, the HKAF is also eyeing an indigenous replacement for its F-16 fleet, with the Hong Kong Aerospace Company recently announcing a collaborative effort with the Russian and Turkish governments to develop a modern replacement for the older F-16s, this also reflects Hong Kong's growing desire to seperate itself from on the United States and become more self sufficient militarily, this is reflected in HKAF procurement, such as the the NextGen AEW&C Platform program where the previously established order 3 E-7A Wedgetails was canceled in favour of the Saab GlobalEye or the replacement for the AH-1 Cobras, where the AH-64E was initially selected, however cancelled in favour of the indigenous HKA AH-69 Jiàn. The Hong Kong Air Force has also recently began modernising its maritime patrol force, with the HR-41 Enforcer being vastly inadequate for Hong Kong's strategic environment, the P-8 Poseidon was selected as the replacement for HR-41 Enforcer with the last of