On Oct/23/2020, see Canada below recently not signing on to mutual air
defence systems because we have the obsolete Air Defence Anti-tank
system (ADATS), are we depending on other countries for defence systems?
1) NATO partners agree to mutual air defense systems.
...Ministers from Belgium, Britain, Denmark, Germany, Hungary, Italy, Latvia,
the Netherlands, Slovenia and Spain signed a letter of intent to implement a
systematic and modular Ground-Based Air Defense, or GBAD, to defend
against a range of air and missile threats.
The system will include very short range missiles, including Stinger, Mistral
and anti-aircraft artillery, and short range and medium range missiles,
including the HAWK and Network Centric Short to Medium Range Ground
Based Air Defense System...https://www.upi.com/Defense-News/2020/10/23/NATO-partners-agree-to-mutual-air-defense-systems/3441603467783/?ur3=1