Examining the origins of the Six-Day War, Matthias Küntzel points to the anti-Semitic—and pro-Nazi—influences in Gamal Abdel Nasser’s formative years and the Egyptian president’s deeply held beliefs about the Jews. He also points to the role that contacts with Islamists played in shaping this secular leader’s politics:

Nasser was born in 1918. In 1935 or 1936 he became a member of the Young Egypt Society led by Ahmad Hussein—a radical nationalist movement that was pro-Nazi in several respects. . . . In 1937, Nasser entered the [Egyptian] Military Academy. In 1938, the core of the Free Officers movement that would take power in 1952 [under Nasser’s leadership] was formed. When, in 1942, “the Germans were close to Egypt,” recalled [one member of the group], we “thought it our duty to do something against the British. We formed a secret organization in the air force to disrupt and impede the British withdrawal from the Western Desert by sabotaging their lines of communication and supply.”

In 1943, Nasser and some of his military colleagues began holding weekly meetings with Mahmud Labib, a leading member of the Muslim Brotherhood, [which], in the 1930s, . . . had received financial aid from Nazi Germany because of its anti-Semitic orientation. . . . In 1948, the Brotherhood was by far the largest political organization in Egypt, with at least one-million members. . . .

It was not by chance that Egypt [after 1952] became the El Dorado of former Nazi war criminals and [current] anti-Semites. One example is . . . [the] neo-Nazi publisher Helmuth Kramer, [who] received political asylum in Egypt in 1965 after a German court had found him guilty of “spreading Nazi ideas.” According to Kramer, Nasser personally dealt with his asylum request and gave permission for him to continue publishing his books.

Though Nasser denied being . . . “anti-Semitic on a personal level,” he emphasized the great relevance of the Protocols of the Elders of Zion for an understanding of world affairs and claimed publicly that “300 Zionists . . . govern the fate of the European continent.” . . . Nasser also denied [the Holocaust] both directly (“No one . . . takes seriously the lie about six-million Jews who were murdered”) and indirectly, by claiming that “Ben-Gurion . . . has killed as many Arabs as Hitler killed Jews.” . . . Nasser’s obsession with the Jewish state was a constant theme of his time in power.

Two extraordinary events demonstrate something important about Israel’s most fervent adversaries. One was a speech given at something called The People’s Forum (funded generously by Goldman Sachs), which stated, “When the state of Israel is finally destroyed and erased from history, that will be the single most important blow we can give to destroying capitalism and imperialism.”

The suggestion that this tiny state is the linchpin of a global, centuries-old phenomenon like capitalism goes well beyond anything resembling rational criticism. Even if Israel were guilty of genocide, apartheid, and oppression—which of course it is not—it would not follow that its destruction would help end capitalism or imperialism.

The other was an anti-Israel protest that took place in front of New York City’s Memorial Sloan Kettering Cancer Center, deemed “complicit” in Israel’s evils. At organizers’ urging, participants shouted their slogans at kids in the cancer ward, who were watching from the windows. Given Hamas’s indifference toward the lives of Gazan children, such callousness toward non-Palestinian children from Hamas’s Western allies shouldn’t be surprising. The protest—like the abovementioned speech—deliberately conveyed the message that Israel is the ultimate evil and its destruction the ultimate good, cancer patients be damned.

The fact that Israel’s adversaries are almost comically perverse does not mean that they can be dismissed. If its allies fail to understand the obsessive and irrational hatred that it faces, they cannot effectively help it defend itself.