Because the last one was "Fleet Battle Experiment India." And the one before that was "Fleet Battle Experiment Hotel." And the one before that was "Fleet Battle Experiment Golf." And the one before that was "Fleet Battle Experiment Foxtrot." And the one before that was "Fleet Battle Experiment Echo." And the one before that was "Fleet Battle Experiment Delta." And the one before that was "Fleet Battle Experiment Charlie." And the one before that was "Fleet Battle Experiment Bravo." And the one before that was "Fleet Battle Experiment Alfa."
Are you, perchance, discerning a pattern in these names?