Complex sentence: The story was picked up by international papers in the US, UK and NZ, and when clippings from these foreign papers filtered back to Australia in the leters home of serving soldiers, it only reinforced the belief that the Bulletin's story was true.
Split into simpler sentences: The story was picked up by international papers in the US, the UK and NZ. When clippings from the foreign papers filtered back to Australia in the leters home of serving soldiers, it only reinforced the belief that the story in the "Bulletin" was true.