After every battle, there is peace. A rest from fighting.
The soldiers are called back home with the sound of peace. This reminds me of a couple of Bible verses. John 10:4 turns our attention to the voice of the shepherd. They know his voice and follow him home. Psalm 23 also focuses our attention on a good shepherd who guides his sheep in paths of righteousness.
Read more at my devotional blog, Seek God With Me, about the peaceful voice of the shepherd who calls to his sheep.