Question:  Arthur Machen was a Welsh author and mystic of the 1890s and early 20th century well known for his leading role in creating the legend of the Angels of Mons, a popular legend about a group of angels who supposedly protected members of what army?
Facts:
Arthur Machen was a Welsh author and mystic of the 1890s and early 20th century
Arthur Machen had a leading role in creating the legend of Angels of Mons
Angels of Mons is a legend about a group of angels who supposedly protected the British Army
Answer: the British Army