British hostage John Cantlie delivers a scripted message today condemning the U.S.-led airstrikes in Syria. The new video is the second propaganda material released by the Islamic State, also known as Daesh.

The new video, which was uploaded just hours after a U.S.-led coalition launched air attacks in Syria, featured Cantlie, 43, sitting behind a desk. He talked calmly about the similarity of the attacks to the war in Vietnam, The Independent detailed.

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"Western governments are hastily marching towards all-out war in Iraq and Syria," Cantlie read, "without paying any heed to the lessons of the recent past."

Cantlie also mentioned the UK's policy against paying ransoms to rescue hostages. He described himself as a "long-term prisoner" of Daesh whom the British government abandoned.

The UK photographer read from a script that described Daesh as the biggest and the "best-armed" Islamist group that arose since 1979.

Cantlie warned the U.S. and its allies against deploying ground troops. Although Daesh has an estimated 15,000 troops, the hostage said this number was "laughably low."

The six-minute video ended with a quote from former CIA officer Michael Scheuer, who said America has spent 18 years fighting Islamists without any outward sign that they know what kind of enemies they are up against.

The latest clip was posted less than a week after Daesh released its first video featuring Cantlie last week, where he indicated he was forced to speak for the Islamlist group.

The British photojournalist was taken in November 2012 with James Foley, an American photojournalist and a close friend who was beheaded by the terror group last month.

In his first video, Cantlie sounded more like an actor promoting a product. The recent video, however, shows him speaking like a TV host, forensic speech analyst Elizabeth McClelland said.

Just this summer, Daesh militants took over large portions of Iraq and Syria. They also posted a video showing the beheading of British aid worker David Haines earlier this month.

Now, the extremist group is threatening to take the life of Salford-based taxi driver Alan Henning, who went to Syria last Christmas to deliver medical supplies.

TagsJohn Cantlie, Daesh, ISIL, propaganda video, U.S. airstrikes