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18 hours 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.
18 hours ago · 50 Hz. (1) Nominal grid voltage according to regulation is 230/400 V, [44] but in practice, equipment with 220/380 V is more commonly used. (2) Types C and F plugs are officially recognized by SNI 04-3892.1.1-2003. (3) British Type G sockets are common in Riau Islands due to their close proximity to Singapore.
