From her own mouth, 3mins 5 secs - 3.34.

"A strong sense that Britain's cause was just, compounded by the miserable atrocities in Belgium and France committed at the hand of the advancing German Army, resulted in a stoic determination to fight, no matter what the cost, for victory. In other words, the task ahead was dutifully accepted other than enthusiastically embraced."
https://www.youtube.com/watch?v=5W0657Bwn_A