It would not be long before the army would have to experience the difficulties which beset a negotiation with Charles. It had first to come to an understanding with Parliament. Before Cromwell's arrival, the Agitators had presented to Fairfax a representation of their old complaints, accompanied with a reminder to Parliament that some particular persons--the Presbyterian leaders were evidently aimed at--had been to blame. In another declaration, known as _A Solemn Engagement of the Army_, these complaints were more forcibly reiterated, with the addition, first of a demand for the erection of a Council of the army, composed partly of officers and partly of Agitators; and secondly, of a vindication of the army from harbouring wild schemes, 'such as to the overthrow of magistracy, the suppression or hindering of Presbytery, the establishment of Independent government, or the upholding of a general licentiousness in religion under pretence of liberty of conscience'. That these two clauses were added under Cromwell's influence--if not by his own pen--can hardly be doubted. On the one hand, if the army was to intervene in politics, it must speak through some organ, having, as far as possible, the character of a political assembly; and, on the other hand, it must be made clear to all that its aims were as little subversive as possible. If the Presbyterians would acknowledge that their designs had met with an insuperable obstacle, and would resign power into hands more likely to use it with prudence, the crisis might be tided over without leaving behind it more evil consequences than were necessarily connected with the intervention of an armed force. Unhappily the Presbyterians were the most unlikely persons in the world to grasp the realities of the situation. They firmly believed, not only that their cause was just, but that the army--without a shadow of excuse--had deliberately, even before the London militia had been reorganised, plotted the seizure of the King's person, with the object of establishing anarchy in the Church and military despotism in the State. Each party, in short, was convinced that it was acting on the defensive; and, in politics, as in all other spheres of life, results are to be traced less to facts which actually exist than to the assumptions relating to those facts in the minds of the actors. Parliament actively pursued its preparations for resistance, planning the formation of the nucleus of a fresh army at Worcester, and granting permission to the City to raise cavalry as well as infantry. The soldiers were undoubtedly right in holding that nothing less than the outbreak of another civil war was impending.