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Which weapons were prohibited by the Declaration of St. Petersburg of 1868?
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war
United Nations forces fighting to recapture Seoul from communist invaders, September 1950.
The Declaration of St. Petersburg of 1868 prohibited the use of explosive projectiles weighing less than 400 grams.1
This agreement was rooted in the principle that the only legitimate objective for states during wartime is to weaken the enemy's military forces, rather than to cause unnecessary suffering. By limiting the use of such small explosive devices, the declaration represented an early effort to establish humanitarian norms in the conduct of warfare.21