Category Nuances for national_defense:

• important,
• sensitive,
• industrial,
• strategic,
• functional,
• vital,
• conventional,
• governmental,
• federal,
• crucial,
• private,
• natural,
• social,
• meaningful,
• technological,
• public,
• international,
• numerous,
• essential,
• supporting,
• societal,
• critical,
• necessary,

Simple Categories for national_defense:

• sector,
• category,
• system,
• area,
• part,
• thing,
• whole,
• practice,
• topic,
• arena,
• department,
• activity,
• effort,
• building,