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Subject
- Humanitarian assistance7
- Geology3
- United States. Department of State3
- Aquifers2
- Diplomatic and consular service, American2
- Groundwater2
- Harbors2
- Roads2
- Time2
- World War, 1914-19182
- World maps2
- Cartography1
- Dam failures1
- Emergency management1
- Floods1
- Geographic information systems1
- Glacial lakes1
- HIV infections1
- HIV/AIDS1
- Intervention (Administrative procedure)1