The tortured discussion on the legitimacy of the protest "flightilla" – the anarchist fly-in by so-called peace activists who are actually warmongers – is a dangerous discussion. We must not tolerate the Left´s approach: welcoming the warmongers and "explaining the situation to them from an Israeli perspective, arguing for our legitimacy in making a home for ourselves in the land of Israel."

It is time to wake up. Israel is in the midst of a new kind of war, in which delegitimization has replaced bullets, and provocations have replaced tanks and jets. Are IDF soldiers asked to explain why Israel is right and the enemy is wrong during actual fighting? Would we try to be polite, or shall I say naive, to a suicide bomber trying to hurt our children? The answer is no.

Just as there is no room for suicide bombers or enemy soldiers in Israel, there is no room for these activists either. The war of legitimacy is a new kind of war. It is misleading and confusing, but it is a battleground nonetheless, and we must treat it as such.

The failures of the Second Lebanon War could repeat themselves. To try to explain Israel´s justifications to those who question Israel´s right to exist is recklessly naive and will cost us dearly. One day a government appointed investigative committee will conclude that Israel´s isolation in the international arena is the work of Israeli leftists.

And what now? What should Israel do with these lawbreakers? Here, too, the answer is obvious: prevent, arrest, forbid, deport. Prime Minister Benjamin Netanyahu was wise to prepare for the flightilla to the extent that he did. We must prevent these people from setting foot in Israel, we must arrest them if they do arrive, detain every criminal anarchist who tries to act against Israel and permanently expel them. Enough naivete. Enough excuses. Israel must protect itself from every threat, in every arena, by any means.

Those anti-Israel activists who protest in the Palestinian village of Bil´in every week and hurl rocks at IDF soldiers are gathering information, aiding terrorists, and trying to undermine Israel´s status as the only democracy in the Middle East. Thousands are being murdered in Syria, Lebanon is under the control of a terrorist organization, extreme Islamism is overtaking Egypt, Iran is threatening to build nuclear weapons – but it is the Israeli transgressions that top the activists´ agenda.

Israel does not have to justify its existence. The "Israeli case," as one of those naive souls tried to present it, is well documented in the annals of history, starting with the Exodus from Egypt, through the giving of the Torah on Mount Sinai and the liberation of the land of Israel, all the way to the Holocaust and Israel´s rebirth. The Jewish people do not need to justify themselves to anyone – certainly not to outlaws. The author is a Likud member and an MK.