information about Combined operations field
Field Hierarchy
| Parent | |||
|---|---|---|---|
Political science 22.1M papers | Law 13.7M papers | Geography 11.5M papers | History 7.1M papers |
Archaeology 6.5M papers | Spanish Civil War 95k papers | Military operations other than war 1,869 papers | |
| Current | |||
Combined operations 54 papers | |||
| Child | |||
Trends