Marseille's defensive strategy and goal for an unbroken away record in the Europa League campaign is one of the most important factors that will determine their success this season.

The French side has always been known for its strong defense, but this season they have taken it to another level. Their defensive tactics involve keeping the ball in midfield as much as possible, which allows them to control the game and create opportunities for themselves.

One of Marseille's key players is Lucas Hernandez, who has become a fan favorite since joining from Bayern Munich last summer. His ability to read the game and make crucial tackles has been instrumental in the team's success so far.

Another player who has contributed significantly to Marseille's defense is Kalidou Koulibaly, who has been a rock at the back for the club. He has been praised for his work rate and aerial ability, and he has helped keep several clean sheets for the team.

In addition to these individual players, Marseille's defense has also benefited from a strong back four, including Mathieu Debuchy and Benjamin Mendy. These two defenders have been solid in the center of the defense, and they have helped provide cover for the full-backs, who can push up into attack when necessary.

Despite their strong defense, Marseille still need to improve on their home form this season. They have only won three of their nine home games in the league so far, and they will need to find a way to win more matches if they want to retain their unbeaten away record in the Europa League.

Overall, Marseille's defensive strategy and goal for an unbroken away record in the Europa League campaign is a testament to their strength in defense. With the right combination of individuals and tactical approach, they could be set for a successful campaign in Europe.