Hurricane Season was a campaign that ran from January to June 1871, primarily in the Caribbean Sea.

The Empire of the Blazing Sun, wishing to divert the Federated States of America attention from its buildup of forces for an operation in the Pacific, launched an assault (in association with the Prussian Empire) on FSA-held Cuba and and other islands in the area. Throughout the campaign, the Covenant of Antarctica also attacked both sides, aiming to influence decision making and end the conflict sooner.

Although the EotBS and Prussians were successful in taking several islands from the Grand Coalition Forces (noteably the Britannian territory of the Falkland Islands, and the FSA territory of Peurto Rico), the assault on Cuba ultimately failed, and conflict in the area ground down to a stalemate.