1In a medium bowl, combine the green olives and black olives.
In a small saucepan, add the dry red wine and bring to a gentle simmer over medium heat. Let it reduce by half, about 5 minutes.
Pour the reduced red wine over the olives.
Add the olive oil, chili flakes, and lemon zest to the bowl. Toss everything together until the olives are well coated.
Cover the bowl and let the olives marinate for at least 30 minutes at room temperature, or up to 2 hours for more flavor.
Thread the marinated olives onto small skewers, alternating green and black olives for color.
Arrange the skewers on a serving platter and sprinkle with chopped parsley before serving.
Serve at room temperature as an appetizer or snack.