Об­ра­зуй­те от слова DEFENSE од­но­ко­рен­ное слово так, чтобы оно грам­ма­ти­че­ски и лек­си­че­ски со­от­вет­ство­ва­ло со­дер­жа­нию тек­ста.

Castle Clinton was built in the times of Napoleonic wars and great tension between Britain and the US. New York was almost ______ and in a short time five new forts, Castle Clinton among them, were built.