On the 30th floor of the Chartered Square building in downtown Bangkok, the low-key office of Skyhub Technologies serves as a nexus for a burgeoning and contentious trade. The space, rented out by a serviced office provider, is visited only rarely by the company's sole director and occasionally by Chinese nationals, according to building staff who asked not to be identified speaking about clients. No contact number is listed on its online registration documents. No one was available during a visit in late January. Despite the appearance of inactivity, this is a busy conduit for advanced drones. Trade documents show that Skyhub Technologies is Thailand's second-biggest importer of unmanned aerial vehicles from China.

"The fact that newer drones, such as the Mohajer-6, are now being seen in places like the Horn of Africa shows that countries see them as a potential game-changer," he added, referring to an advanced Iranian drone claimed to have a range of about 125 miles and the ability to carry precision-guided munitions. "It's amazing warfare on the cheap," said Mr. Frantzman, adding that Iranian drones cost less than other models on the market but were growing in sophistication, and had proved their worth on battlefields across the Middle East. Tehran began drone development in the 1980s during the Iran-Iraq war. Despite crippling sanctions imposed on Iran over its nuclear and missile programs in recent years, it has managed to produce and field a vast array of military drones, used for both surveillance and attack, according to analysis by experts. That program has become a major concern for Israel and the United States in recent years.

WASHINGTON – President Donald Trump will soon make it easier to export some types of lethal U.S.-made drones to potentially dozens more allies and partners -- including Japan -- according to people familiar with the plan. Trump is expected to ease rules for such foreign sales under a long-delayed new policy on unmanned military aircraft due to be rolled out as early as this month, the first phase of a broader overhaul of arms export regulations. U.S. drone manufacturers, facing growing competition overseas especially from Chinese and Israeli rivals who often sell under lighter restrictions, have lobbied hard for the rule changes. The White House is expected to tout the move as part of Trump's "Buy American" initiative to create jobs and reduce the U.S. trade deficit. Human rights and arms control advocates, however, warn it risks fueling violence and instability in regions such as the Middle East and South Asia.