Invasion literature was not without detractors; policy experts in the years preceding the First World War said invasion literature risked inciting war between England and Germany and France. Critics such as Prime Minister Henry Campbell-Bannerman denounced Le Queux's "The Invasion of 1910" as "calculated to inflame public opinion abroad and alarm the more ignorant public at home." Journalist Charles Lowe wrote in 1910: "Among all the causes contributing to the continuance of a state of bad blood between England and Germany perhaps the most potent is the baneful industry of those unscrupulous writers who are forever asserting that the Germans are only awaiting a fitting opportunity to attack us in our island home and burst us up."