History of the Peloponnesian War

This decided, it was still impossible for them to commence at once, from their want of preparation; but it was resolved that the means requisite were to be procured by the different states, and that there was to be no delay. And indeed, in spite of the time occupied with the necessary arrangements, less than a year elapsed before Attica was invaded, and the war openly begun.

This interval was spent in sending embassies to Athens charged with complaints, in order to obtain as good a pretext for war as possible, in the event of her paying no attention to them.