For Americans at war today, the most dangerous enemy doesn’t have a face.

Improvised explosive devices, or IEDs, are now the biggest threat to our fighting men and women. These invisible yet deadly weapons are responsible for about two-thirds of American casualties in Iraq and Afghanistan. Recently, Foreign Policy magazine reported that 16 years after the war began, IED attacks in Afghanistan are increasing. They will surely be a central part of the Taliban’s recently announced “spring offensive.” President Trump has committed another 4,000 troops to the region and is currently considering sending 1,000 more, increasing American exposure to the IED threat.