The Invincible Island, A Poem: With Introductory Observations On The Present War is a book written by Percival Stockdale in 1797. The book is a long poem that tells the story of an island nation that is invincible due to its strong military and political power. The poem is set in the context of the ongoing war that was taking place at the time of its publication, with Stockdale providing introductory observations on the war in the book. The poem is...