WWI and WWII were two different wars, fought for different reasons in different ways, with different outcomes. The article is about a battle in WWI, not about WWII. 

As for "our rising in the world", it is true that North America benefited from WWI in relative terms, simply because in that war Europe destroyed itself. Many immigrants came here after the war to escape the misery in Europe, thus contributing to Canada. But to celebrate the misfortune of others is rather twisted. We should remember WWI and those who fought or died there; they deserve not to be forgotten. I don't think they would want us to celebrate their death and suffering and those of their comrades, or the senseless destruction of which they were a part.