You are either with us, or against us
In political communication, the phrase "you are either with us, or against us" and similar variations are used to generate polarisation and reject non-partisanship. The implied consequence of not joining the partisan effort of the speaker is to be deemed an enemy. A contemporary example is the statement of former US President George W. Bush, who declared at the launch of his anti-terrorism campaign, "Every nation, in every region, now has a decision to make. Either you are with us, or you are with the terrorists." Background. The statement generally  is a descriptive statement identifying the beliefs of the speakers, and thus state a basic assumption, not a logical conclusion. It may also be interpreted as a speech act. Sometimes it is interpreted as a splitting or a false dilemma, which is an informal fallacy. Some see the statement as a way of persuading others to choose sides in a conflict which does not allow the position of neutrality. Only when there are no alternatives like a middle ground does the phrase hold validity as a logical conclusion. The phrases are a form of argumentation. You are either with us