  Searle 1969, p. 62–4, had argued that a performative formula such as “I promise to…” is an “illocutionary force indicator” in the sense that it is a device whose role is to make explicit the force of the speaker’s utterance. Making something explicit, however, would seem to involve characterizing an independent event or state of affairs, and as a result Searle’s account presupposes that speakers can imbue their utterances with the force of demotions and excommunications; yet this is what was to be explained. Realizing this, Searle and Vanderveken (1985) characterize performatives as speech acts having the force of declarations. Uncontroversial examples of this speech act are declaring war or adjourning a meeting. Searle 1989 then acknowledges that this account pushes us back to the question how certain expressions come to have the power to make declarations. In that same work he offers an answer that depends on the view that in uttering a sentence with a performative prefix, a speaker manifests an intention to perform an act of a certain kind: in uttering the words, ‘I order you to close the door’, I manifest an intention to order you to close the door, etc. Searle also takes it that manifesting an intention to perform a speech act is sufficient for the performance of that act. On this basis, Searle goes on to attempt to derive the assertoric nature of performatives, holding that when uttered in such a way as to say something true, they are also assertions.