In a saucepan, combine 2 cups cranberry-apple juice, 2 cinnamon sticks, 3 strips lemon peel and 3 allspice berries. Bring to a boil and cook for 8 minutes; let cool. Meanwhile, in a large pitcher, combine 6 cups chilled cranberry-apple juice and 1 cup applejack brandy. Stir in the spiced juice mixture. Pour over ice and garnish with green apple slices.