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ISIS has a navy? The US is sinking it

Iraqis ride boats in the Tigris River in the capital Baghdad in August
US and allied warplanes have sunk over 100 ISIS boats, destroying 65 of them in September alone, according to the international military coalition.
While Iraq is nearly entirely land-locked, the Tigris and Euphrates rivers that cross that country are navigable, and ISIS has been using watercraft for a variety of purposes, including transporting fighters and conducting improvised explosive attacks.\
The US-led anti-ISIS coalition provided CNN with video of a September 10 airstrike against an ISIS tactical unit aboard a boat near Bayji, Iraq.
Barges, skiffs and motorized watercraft have been observed operating along the Tigris and Euphrates rivers for the purpose of ferrying ISIS fighters and equipment across the rivers, Operation Inherent Resolve spokesperson Col. Joseph Scrocca told CNN, adding that it happens often when anti-ISIS Iraqi troops control the area’s bridges. Coalition bombs have also targeted bridges used by ISIS, thereby further necessitating the terror group’s reliance on boats.
“They have also been used by Daesh for waterborne improvised explosive device attacks,” the spokesperson added, using another name for the terror group.
A US Apache attack helicopter in July destroyed one such waterborne IED, a boat full of explosives. The vessel was attempting to remove a newly built Iraqi bridge spanning the Tigris River, according to the US military.
“It destroyed the boat so it didn’t go attack the bridge,” US Army Col. Christopher Garver, a spokesman for the military coalition against ISIS, told reporters in August.
But while the US and its allies have been striking ISIS boats for months, the last few weeks have seen a major uptick in the number that have been sunk, with over 50 destroyed on September 16 and 14. Those strikes occurred near the towns of Qayyara and Sultan Abdallah, which lie along the Tigris River south of the ISIS-held city of Mosul.
Experts think that the increase in the rate of strikes is tied to the upcoming effort by the US and Iraq to retake Mosul, which military officials have said could start as early as October.
As part of its defensive efforts, “ISIS is going to try and move fighters up and down the river,” retired US Navy Cdr. Chris Harmer told CNN.
Harmer thinks the US is attempting to scuttle the ISIS vessels in particular so that the group can’t position its forces via the water. The Tigris River runs directly through the heart of Mosul, dividing Iraq’s second-largest city in two.
He also called the boats an “easy target in terms of avoiding civilian casualties” for the US.
ISIS, he said, might try to destroy bridges to slow the Iraqi military’s assault on Mosul, noting that “a speedboat with 1,000 kilograms of explosives going into a bridge” is a lot harder to defend against than a conventional IED that would have to be set by ISIS operatives on foot.
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