I'm gonna go with a free textbook, cause it's free duh :))
It means that even it everyone is doing something wrong, it is not right. It is referring to peer pressure, don't do something just because everyone else it doing it.
"They...<span>think that there is nothing more inglorious than that glory that is gained by war"
This quotation sums up the main idea because it not only reinforces to the reader that they are against war, but it gives some insight into why they are against war. The people think that there is no glory to be gained in war, so they choose to just prepare a defensive army, never an offensive one. </span>
Britain<span> will be remembered based on their actions in this great war, was the main message.</span>
