Could you please check these last two sentences, please? Thank you for your help.

Question

1. Britain entered the First World War in 1914 by declaring war on Germany after the German invasion of Belgium.
Peace was made at Versailles in 1919. Many British war poets expressed their thoughts about the stupidity of war in their poems.
2. Their message, especially that of Wilfred Owen, was That war is an act against God and man.

Answer 1

lower-case "t" on "that" in 2.