210205-N-MJ716-0065 -- SAN DIEGO (Feb. 5, 2021) A Navy Sailor throws a package into the water during a pier line barrier breach and suspicious package drill conducted during exercise Citadel Shield-Solid Curtain 2021 (CS-SC 21). CS-SC 21 is a two-part, force protection exercise that is conducted on installations Navy-wide and is used to evaluate the readiness of fleet and installation security programs.


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