Diplomatic credentials

Definition and stakes

Walter Alison Phillips,  1911 Encyclopædia Britannica, Volume 8… (1911)

“ An ambassador, he says, need not be received, and he may be expelled. In actual practice a diplomatic agent who has made himself objectionable is withdrawn by his government on the representations of that to which he is accredited, and it is customary, before an ambassador is despatched, to find out whether he is a persona grata to the power to which he is accredited. ”
Source: Wikisource

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