If the plan is to bet the United States’ national security on the siege-warfare technology of the ancient and medieval worlds, which is what a wall does, then our strategy has to be much more ...

If the plan is to bet the United States' national security on the siege-warfare technology of the ancient and medieval worlds, which is what a wall does, then our strategy has to be much more ...

No wall can stop a well-built trebuchet. Trump's proposed wall is part of his plan to restrict illegal immigration, but he has also cast it as part of a solution to drug abuse and overdose deaths.

But if we don't win the medieval arms race, we risk a bloody repeat of the Sassanian Siege of Amida in 359, when Romans holding the city were overrun and killed (much as Trump claims illegal ...

Readers React: Trump wants a wall to hold back the hordes, just like a medieval royal Border wall prototypes stand in San Diego near the U.S.-Mexico border on Dec. 12, 2018. (Moises Castillo / AP) ...

The wall won’t work “not because it’s a throwback to imagined medieval barbarism,” writes medieval historian David Perry, “but because it’s a con.” Solutions to medieval challenges ...

Castles were built to withstand anything—but medieval armies got creative. From tunnels to towers, here’s the siege tactic that tipped the odds.

The wall won’t work “not because it’s a throwback to imagined medieval barbarism,” writes medieval historian David Perry, “but because it’s a con.” Solutions to medieval challenges ...

Trump said that his proposed border wall would have to be 'transparent' to prevent Americans from being struck and killed by 60-pound sacks of drugs tossed over fro… ...

But if we don’t win the medieval arms race, we risk a bloody repeat of the Sassanian Siege of Amida in 359, when Romans holding the city were overrun and killed (much as Trump claims illegal ...