Up to this time there had been, indeed, a vigorous and decided opposition, but no insurrection. The true cause of the Hungarian war was the hostility of the Austrian Government to the whole series of reformatory measures which had been effected through the instrumentality of Kossuth; but its immediate occasion was the jealousy which sprung up among the Servian and Croatian dependencies of Hungary against the Hungarian ministry. This soon broke out into an open revolt, headed by Baron Jellachich, who had just been appointed Ban, or Lord, of Croatia. How far the Serbs and Croats had occasion for jealousy is of little consequence to our present purpose to inquire; though we may say, in passing, that the proceedings of the Magyars toward the other Hungarian races was marked by a far more just and generous feeling and conduct than could have been possibly expected. But however the case may have been, as between the Magyars and Croats, as between the Hungarians and Austria, the hostile course of the latter is without excuse or palliation. The emperor had solemnly sanctioned the action of the Diet, and did as solemnly denounce the proceedings of Jellachich. On May 29th the Ban was summoned to present himself at Innsprück to answer for his conduct, and as he did not make his appearance, an imperial manifesto was issued on June 10th depriving him of all his dignities, and commanding the authorities at once to break off all intercourse with him. He, however, still continued his operations, and levied an army for the invasion of Hungary, and a fierce and bloody war of races broke out, marked on both sides by the most fearful atrocities. The Hungarian Diet was opened on July 5th, when the Palatine, Archduke Stephen, in the name of the king, solemnly denounced the conduct of the insurgent Croats. A few days after, Kossuth, in a speech in the Diet, set forth the perilous state of affairs, and concluded by asking for authority to raise an army of 200,000 men, and a large amount of money. These proposals were adopted by acclamation, the enthusiasm in the Diet rendering any debate impossible and superfluous.