Complex sentence: This was The Citadel's second appearance at the Tattoo having also appeared there in 1991; in the summer of 2013 the Band and Pipes will perform at The Royal Nova Scotia International Tattoo in Halifax, Canada.
Split into simpler sentences: This was The Citadel's second appearance at the Tattoo having also appeared there in 1991. In the summer of 2013 the Band and Pipes has been invited to perform at The Royal Nova Scotia International Tattoo in Halifax, Canada.