Maybe it's hard for people outside of Israel to understand, but this is not some kind of baseless "hatred" between Israel and Iran. On the contrary, most Israelis feel an affinity and great sympathy with the Iranian people who have suffered under the brutal rule of the radical Islamist regime since Ayatollah Khomeini's revolution in brought him to power in 1979. Prior to that revolution Israel and Iran enjoyed warm friendly relations. Khomeini's new regime broke off relations with Israel and designated Israel an enemy.

The campaign against Israel is part of the ideology of Khomeini and his followers, a twisted regime built on his specific interpretation of a specific stream within the Twelver Shiism sect of Islam.

Khomeini despite being a Shii was influenced by the Sunni Egyptian Jihadi theologian Sayid Qutb, one of the leading ideologues of the Muslim Brotherhood movement. Qutb's works inspired his ideas on revolutionary Islam, but also anti-Semitism (Qutb was virulently anti-Western, but also anti-Jewish and obsessed with various conspiracy theories about the Jews).

Both the Islamic revolutionary regime in Iran and Hamas in Gaza are offshoots of Qutb's ideas and share a common root, despite Hamas being Sunni and Khomeini being Shii.

Historically there were streams within Shii Islam for whom concepts of purity and impurity were fundamental, and at various times in the history of both Iran and Shii areas of Yemen, there were Islamist theocratic regimes who issued edicts against non-Muslims, especially Jews, based on this belief that they were "unclean" and threatened to "contaminate" the pure Shii population.

Thus at various times during the Islamic period in Iran there were laws stating that Jews could not go outside in the rain in case a raindrop touched both a Jew and a Muslim, Jews had to step off the pavement if a Muslim came towards them in case they should touch the Muslim and so defile him and so on.

There were also periods of forced conversion and pogroms, most infamously in Meshhad, where the Jews were given an ultimatum in the late 18th century to either convert or die, some Jews fleeing to other communities such as Herat in Afghanistan, others choosing to publicly convert to Islam while in secret living as Jews like the Marranos in Inquisition Spain.

Despite this history though there were many periods when Jews in Iran were able to flourish and enjoy good relations both with their Muslim neighbours and the ruling dynasty. The Jewish presence in Iran predates the advent of Islam there by many centuries. There was a Jewish community there since biblical times, when the Babylonian king Nebuchadnetzer exiled vast numbers of people from the Kingdom of Israel to his empire. The Purim story happened in Persia. The connection between our peoples is long.

The State of Israel enjoyed good relations with Pahlavi dynasty ruled Iran in the first decades of Israeli independence when Jews from Iran were free to travel to Israel and many made aliya out of Zionist beliefs, not because they were fleeing hardship.

Israel to this day has close cultural ties with Iran. In modern Israel there is a large community of Jews of Iranian descent, including leading Israeli singers such as Rita, the various members of the legendary Banai family, Rita's niece Liraz Charhi and modern day litugical composer and singer Maureen Nehedar. All have released music with Persian influences, several have recorded albums of Farsi music. Iranian Jews have held high office in Israel, including commanding the IDF and Israeli Air Force and President of the State of Israel.

And yet for the Islamist regime in Iran Israel is a thorn in the side of their vision of "pure" Islamic Middle East under their concept of Shii theocratic hegemony.

To this end Khomeini and his successor Khameinei have invested great resources in working towards Israel's destruction. They have built up proxies in Shii communities throughout the Middle East, weaponised them into revolutionary militias to become vehicles of Khomeinist influence in their communities, tentacles of a military infrastructure designed to both project Iranian Islamist ideology and power, but also to encircle Israel in a destructive noose. Hizballah in Lebanon, assorted militias in Shii majority Iraq, the Houthis in Yemen, even Sunni Hamas in Gaza and further afield.

This deep seated ideological and theological hatred of Israel is at the heart of this war. The Islamist regime has been conducting this war against Israel for decades now via its proxies, all the while developing Iran's own capacity to wage direct war against Israeli via the development of increasingly powerful long range missiles and drones, and its nuclear weapons project. All the while a clock in central Tehran counted down the minutes and hours to Israel's destruction at the hand of the regime.

Israel waited for years for Western diplomacy with the government of Iran to yield some kind of detente, or at least a moratorium on Iran's nuclear and missile programme. To no avail. The Islamic revolutionary regime continued working on the means to destroy Israel even in the face of Western sanctions, diplomacy and negotiations. The decision of the Biden administration to unfreeze Iranian bank accounts only served to hasten the Iranian project by freeing up funds to finance the plan to destroy Israel.

Which brings us to now. Israel could wait no longer to take decisive action against the Iranian nuclear weapons programme and the increased production of deadly ballistic missile and drones to deliver this doomsday payload.

For years leaders of Iran's regime have pledged to wipe Israel off the map. They backed up these threats with military action via their proxies and an advanced weapons programme of increasingly sophisticated missiles and drones, plus work to manufacture their own nuclear weapons. This is an existential threat that Israel can't ignore. When someone pledges to kill you over and over and over again while engaging in a build up of ever more destructive weapons you have to take that threat seriously to protect your citizens. That is what Israeli is doing now, launching a pre-emptive strike at the eleventh hour as Iran is on the cusp of building their nuclear bombs.