| Label | Dataset | Type | Subdivision | Identifier | |
|---|---|---|---|---|---|
| 1. | Defenses | LC Subject Headings (LCSH) |
Topic SimpleType Authority |
General Subdivision | sh99005481 |
| 2. | Boundaries | LC Subject Headings (LCSH) |
Topic SimpleType Authority |
General Subdivision | sh99004860 |
| Borders ; Boundary disputes ; Disputes, Boundary ; Frontier troubles ; Frontiers (Boundaries) ; Geographic boundaries ; Political boundaries ; Territorial boundaries ; Frontier troubles | |||||
| 3. | Commerce | LC Subject Headings (LCSH) |
Topic SimpleType Authority |
General Subdivision | sh99001412 |
| Commercial trade ; Foreign trade ; Trade | |||||
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