Ao what you are saying is that Israel needs to attack all neighbouring countries before they do?
No, I'm not saying Israel is to attack "all neighboring countries", only those proving to have the agenda and will and capabilities to destroy Israel and also as a last resort.
Think about it, if you live in the USA and North Korean threatens to destroy the USA, the USA will "ask" the same questions:
1. Are the serious about this threat - do they have an Agenda of actually doing such a thing?
2. Do they have the capabilities to do such a thing, or are they aiming to get such capabilities?
3. Will they act once they have such capabilities?
So, in the USA case its much harder to destroy because of the size of the united states and also because of the distance, and also it's harder to "imagine" one will actually "Act" (3) because of the USA military power is so overwhelming and can avenge even after a strike hits it. But what if there was a bomb that can destroy ALL of the USA in 1 strike? would the USA allow North Korean to hold such a bomb? Would they allow North Korean to try and get to it underground - all the while threatening to annihilate the USA? Fortunately for the USA there is no such a single-bomb yet, but a country the size of Israel can be destroyed by a single bomb these days..
So in Israel's case, passive defensive measures are of course also taken into consideration, such as:
1. Once a country/Terror organization has the means to act, can anti-missile defense work efficiently enough to defend the Israel?
2. Do Israel have enough Air-dominance to remove threats before happening, i.e while launching missiles?
3. Can Israel take such hits without being critically damaged, wounded or even completely destroyed or crippled and thus vulnerable to other threats? (etc) and what is the rate of death from potential attacks?
But once you start answering these questions, you might find yourself in a position where all of Israel's (or any country) measures start to fail and the potential damage is too high, then the defensive measures must become active measurements, such as politically trying to stop movement of troops or arms, moving army to locations where it shows you will act if the other side prepares to launch attacks, and even strike against critical points of "balance changing abilities".
Those "balance changing" "things", such as mass-destruction weapons that are being sent to Terrorists are called "balance changing" because up until the Terrorists or the ones want to kill others get to such capabilities, there's a balance between the passive defensive measures and the threats.
This balance is often called "cold war" or "peaceful time" where in fact it is not peaceful at all, but an arm-race.
Once the line of "balance changing capabilities" is crossed, the balance is broken and passive-defenses become less and less effective sometimes over time and sometimes at-once. Then we get to the active measurements where at the top of the line we see military action to prevent the other side of harming your country.
(Such as defensive strikes to remove the balance-changing capabilities from the world).
Such calculations are different from country to country, according to location, demographics, capabilities, allies, resources, current threats, future potential threats and many more factors.
So, as you can see, we are not talking about a Strike against Syria, but against Hizballah trying to get Syrian weapons of mass-destructions. Same goes for Iran. these are "balance changing weapons" or "capabilities."
To summarize:
No, I am not saying Israel needs to attack all neighboring countries before they do". I'm saying Israel, just like any other country, needs to evaluate the threats the country is facing and measure them according to capabilities of passive defense, allies, politics and active defensive measurements.
Once done the calculation, just like any country, Israel needs to defend itself against threats that can actually harm it. Again, I'm not talking about just threats, but a real agenda+will+capabilities.
(No is speaking about Israel attacking Turkey, or Jordan, or Egypt for example.... which are all neighboring countries).