Database

 finding the Foreign keys, Primary Keys and finding the relationships to the charts (many to many, one to one, one to many, etc) the charts in gray are the main

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Central Powers CountryID CountryName H BattlesWon BattlesInvolved AlliesvsCentral BattleID BattleName BattleLocation BattleDate BattleResult BattleCasualties Total AlliesPowers CountryID CountryName Battles Won BattlesInvolved PK FK PK FK Central PowersCountry CountryID CountryName WarSide Leader Population MilitaryStrength WarOutcome WarResult CasualtiesLost AlliesPowersCountry CountryID Country Name WarSide Leader Population Military Strength WarOutcome WarResult CasualtiesLost GreatWar WarName CountriesInvolved WarTimeline WarResult WarEnded TotalStrength TotalCasualties TotalBattles OpposingSides Central Powers CountryID CountryName H BattlesWon BattlesInvolved AlliesvsCentral BattleID BattleName BattleLocation BattleDate BattleResult BattleCasualties Total AlliesPowers CountryID CountryName Battles Won BattlesInvolved PK FK PK FK Central PowersCountry CountryID CountryName WarSide Leader Population MilitaryStrength WarOutcome WarResult CasualtiesLost AlliesPowersCountry CountryID Country Name WarSide Leader Population Military Strength WarOutcome WarResult CasualtiesLost GreatWar WarName CountriesInvolved WarTimeline WarResult WarEnded TotalStrength TotalCasualties TotalBattles OpposingSides