The Reconquest of Italy
A quick glance at a map of the Roman Republic in the 8th century would not likely lead to the conclusion that Italy was a natural target for expansion. With the capital in Constantinople, it would be reasonable to expect a greater focus on territories more contiguous with and closer to the capital region. Expanding into the Balkans would seem perfectly logical, with seemingly weak tribal groups squatting on Roman territory. Perhaps a push into the east, towards the Armenian mountains or the heartland of Christianity, Syria. However, a better awareness of the strengths and weaknesses of the Republic and its neighbors explains why Italy was an ideal avenue of attack.
To the east, the Arabs were locked in brutal civil war. An excellent opportunity, if it weren't for the pesky detail that the two main factions still outnumbered Roman forces in the region, individually. Added to that concern were the inherent challenges in geography. Simply put, it was mountains, more mountains, and more more mountains after that. For the time, most in Constantinople agreed that the most prudent course of action was to allow Arab to fight Arab and stay out of the way. The defenses in the region were improved and new fortifications were built, showing that the Romans took the reprieve from raiding as only a temporary mercy, but, other than raiding of their own, no major efforts were made to push east.
The Balkans were little more appealing. The repopulation efforts in Thrace and Macedonia were continuing with steady success, but, again, geography worked against the Republic. The territory was not nearly as mountainous as Armenia, but neither was it as valuable, with centuries of barbarian migrations having greatly disrupted the region. To be sure, the coastal regions were continually occupied, and the Republic would exert pressure inland, but the idea of a Danubian frontier was just too far beyond the possibilities of the time. Such an endeavor would take far more investment than most other projects. Once the Republic would push into Danube valley, all the natural barriers that were a hindrance to them would be gone, but, by the same token, there would be few barriers to invasion from outside. Nothing would stop the Bulgars or Avars or any other tribes from simply marching away from the armies of the Republic, and then marching back when the armies left.
Italy, on the other hand, played into Roman strengths perfectly. Pride alone would make the birthplace of the Republic a tempting target for any state calling itself Roman. It was, however, a more practical rationale that made Italy the key target: The Roman navy. Honed over the better part of the past century, the Roman navy had flourished to heights not seen well beyond living memory. It was easily the second most powerful navy in the Mediterranean. Fortunately for the Romans, the most powerful navy was that of the Caliphate, and the attentions of that state were, again, focused entirely inward. In fact, were it not for the civil war, the Republic likely could not have risked devoting so many resources to any Italian adventures.
Italy, being a long and narrow peninsula, represented a ripe target for any major power with a navy. The Lombard states in the peninsula had proven too tough a nut to crack by earlier expeditions, but their back had been broken by the Frankish invasion of the AD 760s. That invasion had allowed the Romans to re-entrench themselves on the peninsula, in preparation for a future invasion.
That time had come, and the invasion commenced with the siege of Bari in AD 768. The city held out for little over a month before surrendering. The Duchy of Benevento looked around for help, but found itself surrounded by enemies. The Roman navy sailed up the eastern and western coastlines of the Duchy and took every town of note along the shore. By the close of the campaign season, the Duchy of Benevento was effectively landlocked. To be sure, the Duchy had engaged in its own sieges of those coastal regions, but, with complete control of the seas, it was a trivial matter for the Romans to keep any besieged locales totally supplied.
In fact, the Republic had been building up a supply depot in Naples in preparation for an attack on Benevento itself, while the armies of the duchy were bogged down in futile sieges. As AD 768 turned into 769, the Romans gave the Duke, Sicard, terms of surrender, but he held out for hope that the other Lombards would come to their aid. However, Spoleto was also suffering from Roman incursions, and the Kingdom of the Lombards far to the north could not risk diverting its attention from the Franks. When the snows melted, the Romans took Capua and marched onward to Benevento, where another siege was established. The capital held out for three months, before the Duke was betrayed by his men and handed to the Romans, in exchange for clemency. Sicard was brought back to Constantinople and given a pension to live on for the rest of his life, and his duchy was wiped off the map.
Spoleto was the next target, and its duke, Gisulf II, attempted to stall for time with diplomacy, seeking to negotiate terms by which he could come to an accord with the Romans. Stalling was perfectly acceptable to the Romans, who took the time to consolidate their hold on the southern duchy and incorporate the more intransigent Lombard leaders in their territory into the new regime. For his part, Gisulf was hoping that, with Roman support, he could march north and take the Lombard crown for himself, and rule as a Roman ally. This was not entirely unacceptable to the Romans, but they wanted outright control of Spoleto, which Gisulf would not agree to. The Romans wanted the security that came with a contiguous territory across most of Italy, not the paper-thin assurance that their corridor between Ravenna and Rome would be protected.
As negotiations broke down, the Romans readied their forces and marched forth in AD 770 to conquer Spoleto. There would be no defiant last stand as Sicard had attempted. When the Romans reached his capital, Gisulf came out to meet them and surrendered his city. He was given the option of being a figurehead leader in his city, but chose to join Sicard in luxurious exile in the capital. Gisulf would use his time and resources to write a history of the Lombards, which has survived only in fragments.
Thus, the Roman Republic was able to secure the majority of Italy with few losses. It was a testament to Lombard weakness, rather than Roman dominance, that majority of the peninsula was restored. However, the extensive preparations and methodical focus greatly enabled the campaign. The Romans were also able to use the campaign as a training exercise for many of their armies, rotating portions of several themes in and out of Italy during the distinct phases of the campaign.
The Republic would celebrate a triumph for the commanding generals at the close of 770, and the more ambitious members of the government thought it was finally time to take a shot at the grand prize: the Caliphate itself.
End