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1 day ago · Military alliances shortly before World War I.Germany and the Ottoman Empire allied after the outbreak of war. This is the list of military alliances.A military alliance is a formal agreement between two or more parties concerning national security in which the contracting parties agree to mutual protection and support in case of a crisis that has not been identified in advance.
1 day ago · Frequency and voltage supplied to most premises by country Mains electricity by country includes a list of countries and territories, with the plugs, voltages and frequencies they commonly use for providing electrical power to low voltage appliances, equipment, and lighting typically found in homes and offices. (For industrial machinery, see industrial and multiphase power plugs and sockets ...
