The standard distinction between settled societies and nomadic or seminomadic peoples captures contrasts in the scale and organisation of warfare. Nomadic and semi-nomadic peoples, who generally relied on pastoral agriculture or slash-and-burn shifting cultivation, were less populous and their governmental structures were less developed. The timing and rate of change are also issues in assessing whether there was a Military Revolution in the early modern period. The standard account posits one period of revolution from 1560 to 1660, indecisiveness and stagnation, then a second period of revolution that began with the outbreak of the War of American Independence in 1775 and continued with the French Revolutionary Wars to 1815. The Ottoman army, and even more the navy, of 1600 were very different from those of 1450, such that there was a sustained transformation in Ottoman war-making. The political culture of the Ottoman court and public finances also failed to support the enhancement of Turkish military capability.