"Big Seven" refers to the firsts 7 battleships built to carry the biggest naval guns (> 40 cm) allowed by the [[wikipedia:Washington Naval Treaty|Washington Naval Treaty]], namely, the {{Class|Nagato}}, {{Class|Nelson}}, and {{Class|Colorado}}.
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"Big Seven" refers to the first 7 battleships built to carry the biggest naval guns (> 40 cm) allowed by the [[wikipedia:Washington Naval Treaty|Washington Naval Treaty]], namely, the {{Class|Nagato}}, {{Class|Nelson}}, and {{Class|Colorado}}.