If the war was just and necessary, the circumstances under which it was undertaken were not less promising. The name of the Emperor, it is true, was formidable, his resources inexhaustible, his power hitherto invincible. So dangerous a contest would have dismayed any other than Gustavus. He saw all the obstacles and dangers which opposed his undertaking, but he knew also the means by which, as he hoped, they might be conquered. His army, though not numerous, was well disciplined, inured to hardship by a severe climate and campaigns, and trained to victory in the war with Poland. Sweden, though poor in men and money, and overtaxed by an eight years' war, was devoted to its monarch with an enthusiasm which assured him of the ready support of his subjects. In Germany, the name of the Emperor was at least as much hated as feared. The Protestant princes only awaited the arrival of a deliverer to throw off his intolerable yoke, and openly declare for the Swedes. Even the Roman Catholic states would welcome an antagonist to the Emperor, whose opposition might control his overwhelming influence. The first victory gained on German ground would be decisive. It would encourage those princes who still hesitated to declare themselves, strengthen the cause of his adherents, augment his troops, and open resources for the maintenance of the campaign. If the greater part of the German states were impoverished by oppression, the flourishing Hanse towns had escaped, and they could not hesitate, by a small voluntary sacrifice, to avert the general ruin. As the imperialists should be driven from the different provinces, their armies would diminish, since they were subsisting on the countries in which they were encamped. The strength, too, of the Emperor had been lessened by ill-timed detachments to Italy and the Netherlands; while Spain, weakened by the loss of the Manilla galleons, and engaged in a serious war in the Netherlands, could afford him little support. Great Britain, on the other hand, gave the King of Sweden hope of considerable subsidies; and France, now at peace with itself, came forward with the most favourable offers.