Why did Texans in Galveston and other coastal areas take extra precautions during the war?

Texans in Galveston and other coastal areas took extra precautions during the war due to the threat of naval blockades and potential attacks from Union forces. The strategic importance of these coastal cities made them vulnerable to military operations, leading residents and local authorities to implement defensive measures. Additionally, fears of espionage and sabotage heightened vigilance, prompting communities to prepare for any possible incursions or disruptions. These precautions were essential to protect resources and maintain security in a turbulent wartime environment.