ISIS is calling on their supporters to wage ecological warfare against infidels by igniting forest fires throughout the United States and Europe as part of its jihad.

Quraysh, a pro-Islamic State news agency, is disseminating at least four propaganda posters urging Muslims to set ablaze “forests and fields” to wreak mayhem.

“Oh monotheists [ISIS followers], ignite fires in the forests and fields, and we are addressing especially those who live in Europe and America, for they are painful to them,” one of the posters reads, according to the Middle East Research Institute, which monitors and tracks the terrorist group’s communications.

Quraysh first began circulating the posters in April, the institute reports. Its most recent poster specifies countries in Europe ISIS’ radical adherents should set ablaze.

Meanwhile, historic forest fires surged through California, Spain, and Portugal over the summer. The inferno prompted California’s Democrat Gov. Gavin Newsom to declare a statewide emergency last week over the raging fires.

In April, ISIS celebrated when Notre Dame Cathedral in Paris was set aflame as a victory and a curse upon Christian infidels, the Daily Mail reports.

Earlier this month, President Trump announced Abu Bakr al-Baghdadi, was annihilated by U.S. forces, telling the nation he watched the jihadist ISIS leader dying “in a vicious and violent way, as a coward, running and crying” while observing the raid in the Situation Room.

“He died like a dog, he died like a coward,” he said.

After being under surveillance for weeks by the American military, a U.S. military operation in northwest Syria that took approximately two hours lead to Baghdadi’s death. He detonated an explosive vest as U.S. Special Operations Forces pursued him after storming his compound in the Idlib Province, killing himself and two children he brought with him. Trump said he died whimpering at the back of a dead-end tunnel.

“He crawled into a hole with two small children and blew himself up while his people stayed on the ground,” Marine Corps Gen. Kenneth F. McKenzie Jr., commander of U.S. Central Command, explained.

The U.S. had been searching for al-Baghdadi for years, Trump said, explaining his capture or death has been “the top national security priority of my administration.” 

Four Americans were brutally killed while al-Baghdadi was in power.

James Foley, a celebrated journalist, was kidnapped by ISIS and beheaded in 2014 by order of al-Baghdadi. Kay Mueller, a humanitarian travelling with Syrian contractors for Doctors without Borders was working in Syria when she was kidnapped by ISIS. Mueller was raped, tortured, and enslaved by the terrorist group until her death. Steven Sotloff, a reporter for TIME, was captured by ISIS militants in 2013 while reporting on the civil war in Syria between Islamist forces and then beheaded in 2014 by the same jihadi that slaughtered James Foley.

Peter Kassig, who deployed to Iraq as an Army Ranger in 2007, went to Syria to help Syrian Civil War refugees in 2012. He was captured by ISIS soon after and beheaded in 2014.