They're two men from nations once at war, faraway realms with starkly foreign languages, cultures and such opposing weather as frozen wind and tropical heat.

But these days, Don Sammons and Nguyen Dinh Pham prefer to concentrate on what they have in common: a tiny patch of real estate on the wind-swept plains of southern Wyoming.

In an auction that was also streamed online, Pham, a 38-year-old entrepreneur from Vietnam, bought a 10-acre property billed as the smallest town in America, a locale that traces its roots to the construction of the nation's first transcontinental railroad 150 years ago.

For $900,000, he took over an isolated roadside stopover owned by Sammons — who served as the mayor, postmaster and proprietor of a gas station/trading post and five other buildings along Interstate 80, an hour and a half northwest of Denver.

Pham is using the spot to launch a coffee empire, selling strong-tasting Vietnamese brews to an American audience. In Sammons, he has an ally who remains dizzied by the relationship.

As a young man, Sammons, now 63, fought in the jungles of Vietnam. For now, he manages his old store, helping to market PhinDeli coffee, and plans to return to the country to learn the company's coffee-making secrets. He scratches his head at working alongside a man whose government was once an enemy.

"If you would have told me a few months ago I'd be selling this place to a Vietnamese citizen, I would not have believed you," Sammons said.

To Pham, whose father was a poet and occasional newspaperman who was not involved in the war, the past remains in the past. Eighteen months ago, he was in Ho Chi Minh City when he spotted an online news story about an American town called Buford that was up for auction.

"I thought 'Wow, this is amazing,'" he recalled. "'Where is Wyoming?'"

Things moved fast after that. Pham, who made his wealth importing canned food, men's health products and motor oil, petitioned for an emergency visa to visit the U.S. and attend the auction.

On the day of the April 2012 auction, about 70 people descended on Buford. They gathered around an auctioneer who stood outside the 1,600-square-foot gas station and trading post where Sammons had been selling soft drinks and Western souvenirs. Hundreds more — from 86 countries — tuned in via the Internet.

For Pham, who marveled at the light dusting of snow as he drove into town, buying Buford wasn't easy. At the start, he competed with more than a dozen serious bidders. But when the asking price hit $700,000, most dropped out — except for Pham and a Wyoming man who bid over the telephone.

Finally, Pham emerged as the victor. He had no idea what he was going to do with the place.

"We didn't talk much that day," Sammons recalled. "I said hello and had my picture taken with him. That was about it." Pham's wife and children have yet to visit Buford.

The new owner quickly decided to remodel the trading post with a 7-foot-long serving bar where truckers and cross-country travelers could sample three different blends of coffee grown in Vietnam's lush Central Highlands and Mekong Delta, places Sammons once visited as a soldier.

Pham ships the coffee directly from Vietnam to Wyoming and is looking for distribution centers across the nation, including in California. The world's second-largest coffee exporter, Vietnam sells mostly to European and Asian countries but has no foothold in the U.S.

Pham's company — which has three employees in Wyoming, including full-time caretaker Fred Patzer in Buford — operates from the site of a pioneer-era fort built in 1866 to protect railroad workers and settlers moving west. Its history is rich: Butch Cassidy supposedly robbed a train here.

The town, named after Civil War Gen. John Buford, in its heyday boasted 2,000 residents. Even Presidents Ulysses S. Grant and Franklin D. Roosevelt stopped to visit.

Sammons relished that history when he moved from Newport Beach 30 years ago, relocating his moving business to nearby Laramie and running the show from a rented ranch three miles south of Buford. With sweeping views of the Rocky Mountains, the town sits at an elevation of 8,000 feet — an outpost where winter temperatures stay below zero and winds often blow at 70 mph. A sign bills the town as halfway between San Francisco and New York City.

In 1992, Sammons sold his moving business and bought Buford. He moved into a three-bedroom log cabin a few hundred feet from the trading post and turned an old schoolhouse next door into an office. He refurbished a store built in 1895 into a four-car garage, where he now stores pallets of coffee boxes labeled "Tuyen Ngon Caphe Viet." Some of it will be sold at the trading post, and the rest shipped out to fill orders on Amazon.