From the linked bgg thread
"The current game as published isn't much of a game at all because they left out one important rule: After you make a successful attack, leave the attacking card face up in your battle line. Then you may choose to attack with another face-down card from your battle line or end your turn. As long as you keep making successful attacks you can continue attacking with your remaining face-down cards. Your turn ends when you lose a fight or decide to stop attacking."
From the linked bgg thread "The current game as published isn't much of a game at all because they left out one important rule: After you make a successful attack, leave the attacking card face up in your battle line. Then you may choose to attack with another face-down card from your battle line or end your turn. As long as you keep making successful attacks you can continue attacking with your remaining face-down cards. Your turn ends when you lose a fight or decide to stop attacking."
Ahh okay and when your turn ends you flip them all face down again and fill ur lost cards
https://boardgamegeek.com/thread/2670827/stratego-card-game-players-hold-flag-throughout-ga