Polly: After a few days in the beautiful, but slightly expensive city of Luang Prubang, we decided to venture out east. Our destination was the town of Sam Neua (known locally as Xam Neua), close to the Vietnam border, allowing easy access to the nearby town of Vieng Xai. Before we left the UK, we were perusing one of our many copies of 'Wanderlust' magazine, and had both been fascinated when we read about Vieng Xai. Vieng Xai is a small town, dwarfed by huge, limestone karsts, which incorporate extensive cave networks. During the Secret War, 23000 people lived inside these caves for nine years, whilst the Americans bombed the hell out of them. In the early 1960s US military chiefs reportedly threatened to bomb Laos and Vietnamese communist strongholds along the Ho Chi Minh Trail,
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