The American defense budget is under constant scrutiny, and for good reason. With hundreds of billions of dollars being funneled into our armed forces every year, it goes without saying that there are areas that could use a bit of fat-trimming, but continued combat operations in multiple theaters around the globe have begun to wear on the personnel and equipment that makes America’s military so formidable. It isn’t enough just to have a powerful military; you have to maintain it.

Try to imagine our nation’s armed forces like a pistol. Our nation ventures into some pretty rough neighborhoods, and that pistol serves as our primary line of defense. For years, our trusty pistol has kept our enemies at bay. Now, when we bought the pistol, we knew we’d have to use it, so we got the best pistol we could afford at the time, and it’s proven to be reliable, dependable, and just what we need when our lives are on the line—and they have been repeatedly over the past 15 or so years.

Now imagine if we never cleaned it.

No matter how good that pistol was when we bought it, a decade and a half worth of wear and tear leads to issues. Our military, with the largest defense budget in the world, is better equipped than any military force our planet has ever seen…but what was once a shiny new pistol has become a worn-out old peacekeeper, and although it still fires when we need it to, we know it can’t keep this up without a little TLC.

A recent report, first published by Defense News, claims that a whopping two-thirds of the American Navy’s strike fighters are currently sitting on the tarmac, unable to participate in combat operations due to funding constraints preventing crews from providing the necessary repairs or maintenance those jets need to get back into the fight. The Marine Corps, a branch that still relies heavily on the aging Harrier platform, boasts an even smaller percentage of currently combat-capable aircraft.

I reached out to two friends who work in Marine Corps aviation as I prepared to put this article together. One, who recently separated but requested that his name be omitted, served for six years as a Harrier mechanic. According to him, the aircraft he dealt with on a daily basis were decades old and showing their age. Many of them are kept “barely flight capable,” and he said it wasn’t uncommon at all for planes to be down for years on end due to the limited availability of replacement parts.

I got the same story from another staff sergeant who serves as a fixed-wing aircraft crew chief for the Marine Corps’ C-130s. According to him, one unit he served with had a C-130 that was down for his entire first enlistment. He received change of station orders before he ever saw the plane take to the sky.

Navy ships aren’t fairing much better. Although there’s been quite a bit of news as of late about plans to expand our fleet to 350 or more ships, the ones we already have are woefully under-maintained due to a lack of funding. It has become commonplace for the United States to leave submarines out of service for years at a time—some for as many as four years.