What Article 5 from the NATO Treaty says is that basically when a NATO member is attacked, all other members must take action "
that they deem necessary", which can include the use of armed force, but there is a lot of room for interpretation here as in theory any action can be "deemed necessary", including no action at all. Also Turkey has always been on the fence between NATO and BRICS so I wouldn't think it is on the best terms with US.
However there are 2 reasons I think Israel is
not going to attack Turkey:
1. Israel has not defeated Iran yet. Israel hoped that they will execute in Iran exactly the same mission that has been executed in Syria, a sudden attack that would take the government completely by surprise and overthrow it in one day. Not only that this has not happened in Iran but Iran managed to recover and attack back, causing so much damage that it forced Israel to demand a ceasefire via the US proxy. If Israel attacks Turkey, there is the very likely, possibility that Iran will join Turkey and attack Israel again.
2. Turkey does not have nuclear weapons. Apparently what Israel is doing is a campaign of destroying the nuclear capabilities of hostile countries and also topple their governments to replace them with others that will be friendly or non-hostile. For example Israel has no hostility towards Saudi Arabia because Saudi Arabia, despite being a large military power, is neutral towards Israel. Now Turkey is apparently producing nuclear energy for civil use but exactly as Iran, according to the Israeli paranoia they could be using that energy to build weapons to attack Israel, despite 0 evidence of that as was the case with Iran.
Looking at various sources, who Israel is actually after once they would have defeated Iran is Pakistan:
Tel Aviv’s strategy of striking by air against the nuclear proliferation efforts of its neighboring adversaries has been continuously rewarded
moderndiplomacy.eu
As Pakistan does have nuclear warheads and is very hostile towards Israel. Pakistan is also a very close ally to China as it allows China access to the Arabian Sea for trading etc so if Pakistan ever gets into a military conflict it will likely receive strong support from China (as it happened in the short conflict with India recently). If anything Israel is on a very sensitive position due to the Gaza genocide and the hate and despise it attracted upon itself from the muslim world.
As about Article 5, I do agree with Wise Dragon that by definition it is very discretionary and if Turkey was ever to be attacked, I don't think it will receive support from NATO for once because of this vague definition and secondly because, as we all know, there is always a double standard when it comes to the Jews and their word and influence weighs a lot more than some arguable agreement. I think the sole purpose of Article 5 is just to fool the member states of NATO that they are "protected" and to fool the general people into believing that, when in reality it all depends on the interests of the Jews behind the US government.