Overview of deployed Israeli air defences:
- Arrow-2/3: 3 batteries
- THAAD: unknown (0-1 batteries)
- Patriot (PAC-2): 3-4 batteries
- David's Sling: 2 batteries
- Iron Dome: 10 batteries
Arrow-2/3: 3 batteries
Presume 2 Arrow-2 batteries and 1 Arrow-3 battery
1 battery = 4-8 launchers
1 launcher = 6 Arrow-2/3
--> each battery has 24-48 Arrow-2 missiles
Arrow-2 = 2 x 8 x 6 = 86 Arrow-2 missiles
Arrow-3 = 1 x 8 x 6 = 48 Arrow-3 missiles
= up to 134 total Arrow-2 and Arrow-3 missile interceptors deployed across Israel at any one time
THAAD: 0-1 batteries (not confirmed)
1 battery = 6 launchers
1 launcher = 8 interceptors
Israel does not have any of its own THAAD systems but the US sent unknown number of launchers to Israel in 2019. Assume 1 battery = up to 48 THAAD missile interceptors deployed (by USA).
Patriot PAC-2 air defence system: 3-4 batteries
1 battery = 6 launchers
1 launcher = 4 PAC-2 (OR 16 PAC-3 missiles)
--> each battery has up to 24 PAC-2 interceptors
Israel has 3-4 Patriot PAC-2 batteries deployed = (3-4) x 6 x 4 = 72-96 PAC-2 missile interceptors deployed at any one time
David's Sling: 2 batteries
1 battery = unknown number of launchers (presume 4-6)
1 launcher = 6-12 Stunner missile interceptors
--> each battery has 24-72 Stunner interceptors
Israel is estimated to have 2 David's Sling batteries deployed = 2 x 24-72 = 48-148 missile interceptors deployed at any one time
Iron Dome: 10 batteries
1 battery = 3-4 launchers
1 launcher = 20 Tamir missile interceptors
--> each battery has 60-80 Tamir interceptors
= 20 x (3-4) x 10 = 600-800 Iron Dome interceptors deployed across all of Israel at any one time
Relevance for Iranian ballistic missiles?
Iron Dome and David's Sling are not designed to intercept MRBMs so are of limited relevance.