The Second Crusade was a military campaign launched in 1147 to recapture the city of Edessa, which had fallen to Muslim forces. This crusade was called by Pope Eugene III and was led by notable figures like King Louis VII of France and Emperor Conrad III of Germany. Despite their efforts, the crusaders faced numerous challenges, including poor planning and lack of unity among the leaders. Ultimately, the Second Crusade ended in failure, as the crusaders were unable to reclaim Edessa and suffered significant losses. The campaign highlighted the difficulties of maintaining cooperation among different Christian factions and set the stage for future conflicts in the Holy Land.