In a comparison of the relative sickness of the French and English armies in Spain, there are, however, several points to be considered. The English was essentially an army of operation, constantly engaged in active service, the brunt of every campaign falling principally upon it; the greater part of the French troops consisted of armies of occupation regularly quartered in the country, and having only to contend with guerillas and the feeble Spanish armies, which they so frequently and easily dispersed. A more just comparison would be made with the army of Portugal, which, though smaller in amount, was more constantly engaged in active operations. The lowest ratio of sickness in this army was 64 per 1,000, and the highest 235 per 1,000; the average being 146 per 1,000, which still is lower than the English ratio.