Answer:
The Open Door policy—first initiated in 1899, with a follow-up missive in 1900—was significant in its attempt by the United States to establish an international protocol of equal privileges for all countries trading with China and to support China's territorial and administrative integrity.
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Answer:
They didn't see it as imperialism, they genuinely believed others were "inferior", so I'd say national pride
Explanation:
 what I just wrote
 
        
                    
             
        
        
        
these ideas were Liberty, Equality, and Fraternity. It would be better if there was more context.