Original sentence: Israelis regard many of the Arab criticisms against the state of Israel as threats to the state's existence, and say that against the multitude and power of the Arab states, there is only one Jewish state, which, they feel, should behave vigilantly, and assert its power in both a defensive and preemptive manner as deemed necessary
Edited sentence: Israelis regard many of the Arab criticisms against the state of Israel as threats to the state's existence, and say that against the multitude and power of the Arab states, there is only one Jewish state, which, they feel, should behave vigilantly, and assert its power in both a defensive and preemptive manner as deemed necessary for its survival