The Musketeers were transported back in batches by the Giant Crane. Given their speed of march, they would probably be caught by the Slave Hunter Team of the Shalba family before they reached home. After all, a Musketeer was almost as valuable as a fine Warhorse.
The Fairy Dragon brought over three hundred Gnome warriors from the Goblin tribe on Razor Mountain overnight. She might have known that the militia might not listen to her, so she assembled a reserve team. After all, the Gnome soldiers' spears and shields were readily available in Witherspoon City.
As soon as the twelve Tauren craftsmen learnt that Witherspoon City was about to face a battle, they stopped their work, flung their blacksmith hammers over their shoulders, and rushed over with the Gnome warriors.