Mexican troops defeated the forces of American filibuster Henry A. Crabb near Hermosillo, in northern Mexico.  Crabb was taken into custody along with almost sixty followers. (By Brian Bockelman)

Following the example of Gaston Raousset and William Walker, American adventurer Henry A. Crabb led an expeditionary force of 104 men across the border, with the intent of capturing the northern Mexican territory of Sonora. (By Brian Bockelman)

Forced to flee the Nicaraguan capital of Granada, William Walker and his remaining followers surrender to an American naval squadron, which escorts them back to the United States under arrest. (By Brian Bockelman)

Having acted as the commander-in-chief of the Nicaraguan army since the capture of Granada in October 1855, as well as the power behind the subsequent Liberal government of Patricio Rivas, the American filibuster hero William Walker now has himself elected president of Nicaragua. (By Brian Bockelman)

The armed force led by American soldier of fortune William Walker captured the Nicaraguan capital of Granada. (By Brian Bockelman)

At the invitation of Nicaraguan liberals, embroiled in a civil war with their government, the American filibuster William Walker departs San Francisco for Central America with a force of 57 new recruits.   (By Brian Bockelman)

A Mexican firing squad executed French adventurer Gaston Raousset in Guaymas, Sonora, the port city where both of his failed filibustering expeditions began. (By Brian Bockelman)

After a bloody battle in northern Mexico, General José María Yáñez takes French filibuster Gaston Raousset into custody. (By Brian Bockelman)

Despite his previous lack of success, French soldier of fortune Gaston Raousset began a second filibustering incursion into northern Mexico. (By Brian Bockelman)