> emm, ballistic missile means it’s exo-atmospheric….no?)

Not necessarily. Ballistic can fly within the atmosphere, but at longer distances they probably won’t because it’s not practical. Arrow 3 would intercept like above Iraq, whereas Arrow 2 would intercept at much closer distances to Israel.

> Though I’m pretty sure arrow 2 could be used against paveh, no? 1650 KMs shouldn’t be considered a long-range missile?

The problem is more related to the fact that Arrow 2 is designed to intercept in the upper atmosphere, whereas cruise missiles fly much lower. David’s Sling and Patriot have targeting systems and maneuvering that are more suitable for that.

The name of the game when it comes to Israeli (and American) missile defenses is to just have many different systems with different targets they are focused on.