The Worst of Both Worlds: An Analysis of Urban Littoral Combat by Dayton McCarthy - Australian Army Occasional Paper
With respect to their cities, later on, at an era of increased facilities of navigation and a greater supply of capital, we find the shores becoming the site of walled cities, and the isthmuses being occupied for the purposes of commerce and defence against a neighbour.
Thus wrote the Athenian, Thucydides, some two thousand years ago. Describing the geography, the demography and military status quo before the outbreak of the Peloponnesian War, he noted the particular situation of urbanisation along coastlines and the ramifications this had for the conduct of land and maritime operations. Indeed, Thucydides’ history remains a wealth of information on diplomacy, the nature of warfare and the conduct of operations. He described the utility of naval power for force projection; it was ‘the means by which the islands were reached and reduced.’ He also noted the manpower-intensive nature of fighting in and around cities; ‘summer and winter the Athenians were worn out by having to keep guard on the fortifications, during the day by turns, by night all together.’
As the Peloponnesian Wars demonstrated, the projection of power onto mainland coastlines or islands is not a new concept. This type of operation combining land forces launched from the sea would later be codified and developed into the concept of amphibious operations. Likewise, the need to besiege, capture or reduce cities has long been a staple of warfare, as cities were recognised as prized hubs of wealth, population or political prestige. Yet, if the political and strategic benefits of both types of operations were recognised by strategists and decision-makers, the associated difficulties and costs in planning and executing such operations were also recognised by those tasked to conduct them. Hence, through military history, two truisms have come to the fore: that amphibious operations are the most complicated operations to resource and plan and that urban operations are meat grinder affairs exacting a terrible toll in time, blood and treasure. Many military thinkers suggest that amphibious operations, difficult at the best of times, are no longer feasible in the modern age, while others have long warned that fighting in the cities must be avoided at all cost…