This is the 12133rd most frequent French word.
vaillamment
Bravely.
The word 'vaillamment' is used here to describe the manner in which 'he' fought, implying bravery and determination.
Il a combattu vaillamment contre l'injustice.
He fought valiantly against injustice.
In this sentence, 'vaillamment' explains the courageous and firm manner in which 'she' defended her standpoint.
Elle a vaillamment défendu son point de vue.
She valiantly defended her point of view.
Here, 'vaillamment' describes how the soldiers resisted with courage and persistence.