The Swiss units saw active service against Portugal, against rebellions in Catalonia, in the War of the Spanish Succession, War of the Polish Succession, War of the Austrian Succession (in the fighting in Italy), and against Britain in the American Revolutionary War. By the 1790s there were about 13,000 men making up the Swiss contingents in a total Spanish army of 137,000. The practice of recruiting directly from the Catholic cantons was however disrupted by the outbreak of the French Revolutionary Wars. Recruiting agents substituted Germans, Austrians and Italians and in some regiments the genuine Swiss element dwindled to 100 or less.