Great Britain remained victorious on the field, but she had touched the verge of ruin. Confronted with the fixed resolution of her enemy to break down her commerce by an absolute exclusion from the continent of Europe, and as far as possible from the rest of the world, she met the challenge by a measure equally extreme, forbidding all neutral vessels to enter ports hostile to her, unless they had first touched at one of her own. Shut out herself from the Continent, she announced that while this exclusion lasted she would shut the Continent off from all external intercourse. “No trade except _through_ England,” was the formula under which her leaders expressed their purpose. The entrance of Russia into this strife, under the provocations of Napoleon, prevented the problem, which of these two policies would overthrow the other, from reaching a natural solution; and the final result of the measures which it is one object of this and the following chapter to narrate must remain for ever uncertain. It is, however, evident that a commercial and manufacturing country like Great Britain must, in a strife the essence of which was the restriction of trade, suffer more than one depending, as France did, mainly upon her internal resources. The question, as before stated, was whether she could endure the greater drain by her greater wealth. Upon the whole, the indications were, and to the end continued to be, that she could do so; that Napoleon, in entering upon this particular struggle, miscalculated his enemy’s strength.