Al-Qaeda has upped its ideological challenge to Saudi Arabia with an attack by Hamza bin Laden on the royal family's legitimacy. This comes as the group's failed 2009 attempt to assassinate their Saudi nemesis, Prince Mohammed bin Nayef, ironically appears to have provided the pretense for his demotion from crown prince.

Al-Qaeda declared war on the Saudi royal family 15 years ago with a call to revolution by Osama bin Laden that precipitated the most serious and dangerous violence in the modern kingdom since its founding. Terror attacks hit every major Saudi city. Only after a prolonged counterterrorist campaign led by Mohammed, then interior minister, was al-Qaeda suppressed.

Bin Laden's favorite son has now issued two audio messages attacking the royal family. The first, released a year ago, hailed lone-wolf terror attacks and called for an uprising in the kingdom. The most recent recording is a history lesson and was issued by al-Qaeda's media arm, as-Sahab, from its hideout in Pakistan. In the message, Hamza charges that the founder of the modern Saudi kingdom, Abdul-Aziz bin Rahman Al Saud (Ibn Saud) was a British agent. Ibn Saud allegedly worked with the British to weaken the Ottoman Empire and its tribal ally in the Arabian Peninsula, the Rashids.

Hamza notes that when World War I began, the British sent an emissary to Ibn Saud, Capt. William Henry Shakespear, to propose a formal alliance against the Ottomans and the Rashids. Shakespear was later killed in a battle with the Rashids. Hamza charges that the Saudis betrayed Islam by working with the “crusaders” against the Ottoman caliphate. They were doing the bidding of the “crusaders,” who used the breakup of the Ottoman Empire to create Israel.