History 18 Land use 13 World War, 1939-1945 11 Law and legislation 9 Campaigns 7 Land tenure 7 Politics and government 5 Air defences, Military 4 Dissertations, Academic 4 Encyclopedias 4 Environmental aspects 4 Foreign relations 4 Juvenile literature 4 Land reform 4 Z1 4 Agriculture 3 Fiction 3 Israel 3 Land settlement 3 Military art and science 3 Military history, Modern 3 Thesis 3 Vehicles, Military 3 Acquisition of property 2 Air defenses,Military 2 Amphibious operations 2 Armed Forces 2 Artillery 2 Asia, Southeastern 2 Biography 2