On October 8, 2023, Bernard-Henri Lévy flew to Israel to bear witness to the unprecedented invasion and massacre committed by Hamas. Israel Alone begins here and weaves in Lévy's fifty years on the ground in Israel, from his first trip in 1967, his experiences writing on all the conflicts since, and his participation in various peace plans and contacts with all the Israeli leaders.

From his unique philosophical and humanist perspective, Lévy analyzes the ultimate evil unleashed on Israel on October 7 and delves into how the Islamic Republic of Iran, Russia, radical Islamist groups, Turkey, and China have played roles and profited from this tragedy. The book addresses how October 7, though historic in scope, became, within weeks, a "detail" in the global consciousness amid a worldwide eruption of anti-Semitism, cloaked in anti-Zionism.

Lévy deconstructs the arguments of those calling for a "cease-fire now" without the release of all hostages and of those who demand that October 7 be seen within a greater "context." Lévy's meditation on the soul of Zionism and Israel shows why this war is existential, not only for Israel but for the global West. And yet, despite the urgency and critical nature of this war, Israel takes it on alone. Lévy analyzes, today, why this is so and why Israel's solitude is greater than ever.