[VISION] | PEOPLE: There are no people visible in the image. | TEXT: 19 navy. Two US-made P3 surveillance aircraft were destroyed in the attack. The assailants had insider knowledge of the base, and Pakistani security has arrested former naval personnel accused of helping the attackers. The Karachi attack illustrates the essence of the battle for Pakistan today. The militants support Al Qaeda, but were members of its ally the Pakistani Taliban. Their goal was to humiliate the navy. The navy fought back, but is riddled with jihadist sympathizers who help the militants. A Pakistani journalist, Syed Salman Shahzad, wrote an expose after the attack of the jihadist penetration of the military, especially the navy. He received threatening calls from the military's intelligence service, the notorious Inter Services Intelligence directorate, telling him to stop reporting on the issue, and was murdered shortly afterward. The Pakistani army is genuinely at war with parts of the syndicate of jihadi terror in Pakistan like Al Qaeda and the Taliban. It has more than 140,000 troops engaged in operations against the militants along the Afghan border. Some 35,000 Pakistanis including several thousand soldiers have died in the fighting since 2001, the equivalent of a dozen 911s. Dozens of ISI men have died. But the ISI is also still in bed with other parts of the syndicate like Lashkar e Tayyiba, the group that attacked Mumbai in 2008, and the Afghan Taliban that fights NATO. Despite years of American complaints, those partnerships are still intact. But the terrorists don't stay in the lanes the ISI wants them to stay in. For example, both LeT and the Taliban eulogized bin Laden after his death and mourned the departure of a great "hero" of their movements. The army's ambivalence about the jihad flows from its deep obsession with India. Pakistan - with American help - created the jihad in the 1980s to fight the Soviets in Afghanistan. But from the start the ISI, commanded by then di