Cleve was a plausible pretext, but the true cause, he said, should be found in the general safety of Christendom.
Boississe had been sent to the German princes to ascertain whether and to what extent they would assist the King.

He supposed that once they found him engaged in actual warfare in Luxemburg, they would get rid of their jealousy and panic fears of him and his designs.

He expected them to furnish at least as large a force as he would supply as a contingent.
For it was understood that Anhalt as generalissimo of the German forces would command a certain contingent of French troops, while the main army of the King would be led by himself in person.
Henry expressed the conviction that the King of Spain would be taken by surprise finding himself attacked in three places and by three armies at once, he believing that the King of France was entirely devoted to his pleasures and altogether too old for warlike pursuits, while the States, just emerging from the misery of their long and cruel conflict, would be surely unwilling to plunge headlong into a great and bloody war.
Henry inferred this, he said, from observing the rude and brutal manner in which the soldiers in the Spanish Netherlands were now treated.

It seemed, he said, as if the Archdukes thought they had no further need of them, or as if a stamp of the foot could raise new armies out of the earth.

"My design," continued the King, "is the more likely to succeed as the King of Spain, being a mere gosling and a valet of the Duke of Lerma, will find himself stripped of all his resources and at his wits' end; unexpectedly embarrassed as he will be on the Italian side, where we shall be threatening to cut the jugular vein of his pretended universal monarchy." He intimated that there was no great cause for anxiety in regard to the Catholic League just formed at Wurzburg.