Hungarian armies had entered Italy before. Military intelligence was one of the most important features of nomadic warfare. Starting a war without knowing the enemy's power, number of soldiers, will to fight, etc., was unimaginable in the nomadic societies. This is why in late October 898 they sent a lightly armored, quick moving small unit on reconnaissance, crossing Pannonia on their way to Northern Italy before arriving in Friuli. They camped three days with their tents near the river Brenta, sending their scouts in small groups to reconnoiter the land, its wealth, the number and the fighting spirit of the enemy troops, the routes of attack and retreat, the places which could be chosen as battlefields, where the most spoils were to be found, and the cities and the defensive works. It is certain that the place of the future battle was chosen during this minor incursion. The exact size of the reconnaissance force is not known, but according to
Marco Polo, in the
Mongolian Empire such reconnaissance units were composed of 200 riders, implying that the Hungarian force comprised about 100 to 200 riders. After three days the small groups they sent in every direction, returned, analyzed the information they gained, then returned home. In 899, a Hungarian army entered Italy. Historians do not agree about the route they took.
Gyula Kristó argues that they bypassed Pannonia and went westwards, following the courses of the rivers
Sava and
Drava and entering Italy near Aquileia, on the road named after them,
Strata Hungarorum, due to the fact that they used it so often during the next decades and centuries. According to István Bóna, the Hungarian army, with the permission of Arnulf, crossed Pannonia, then headed towards Italy on the ancient road
Via Gemina, which linked the ancient cities
Celeia,
Ljubljana and
Aquileia, arrived in Italy. Bóna believes, according to the account of
Catalogus abbatum nonantulorum that they arrived in August 899. After all his troops had gathered, his army was about three times the size of the Hungarians'. According to
Chronicon Sagornini of
John the Deacon, the Italian army had 15,000 men, so we can infer that the Hungarians numbered about 5,000. This number could be exaggerated, as medieval chroniclers often did with the size of armies, but there is no reason not to accept the claim that the Italians were three times more numerous than the Hungarians, as contemporary chroniclers generally exaggerated the size of enemy armies relative to theirs. Convinced of his superiority, Berengar allegedly caroused with some of his friends in a town instead of attacking the Hungarian army immediately. This gave time to the Hungarian troops, scattered to plunder every corner of the Italian kingdom, to retreat towards a gathering place, one not precisely specified, on the bank of the river Brenta, which was probably chosen from the beginning to be the place of the battle. Seeing this, King Berengar thought that they were frightened by the number of his troops and started to pursue them, thinking he had already won. His cavalry even managed to surprise a Hungarian group, forcing it to cross the
River Adda in haste, causing the drowning of many of them. But generally the retreat was a success, as the Hungarians' light armor and weapons allowed their cavalry to move more quickly than the more heavily equipped
Carolingian Italian cavalry. (Magyar commoners, who usually carried out the pillaging raids, wore only leather armor; only elites had
lamellar armour, and their weapons were always
composite bows; their melee weapons were
sabres, and rarely
battle axes or
maces. ) The Hungarians retreated along the old Roman
Via Postumia. Although the chronicler Liutprand believes that the Hungarians were frightened, hopeless, and just wanted to escape alive, the modern historians consider that this was only a clever role-playing, in order to get the Italians into a mood which would lead to their defeat. But Berengar did not take this sign too seriously, and continued to chase the fleeing Hungarians. After this long pursuit, on 24 September 899, the Hungarians and the Italians arrived to the river Brenta, after the "most ingenious planned flight of the world history", as István Bóna points. Liutprand mentions that the horses of the Hungarians were very tired, but they had the strength to cross the river before the Italians arrived, so Brenta separated the two armies from each other. The heavily armored Italians could not pass the river so easily, so they remained on the other side, and both armies assembled their battle lines on the both sides of the river. Then the Hungarians again sent envoys to the Italian side, this time with even more alluring propositions for the Italians; in return for their safe return home, they promised to give them everything: prisoners, equipment, weapons, horses, keeping only one for each of them for their homecoming. To show how serious they are about this proposal, they promised that they will never return to Italy, and as guarantees for this, they will send their own sons to the Italians. The Hungarians waited for this moment. The Italians assembled a fortified camp, which however was not sufficiently guarded, left their guard down, and many of them started to eat and drink, to refresh after the long and exhausting pursuit, waiting the continuation of the negotiations, because Berengar thought that the Magyars are too weak and tired to fight, so they are at his mercy. But at the other side of the Brenta river was probably not only the tired, pursued Magyar army group, but other Hungarian troops too which at the start of the campaign, were sent in other directions to plunder, and in the meantime they returned for the battle, and also those who remained in their permanent camp placed in that very place from the beginning of the campaign, because it was chosen a year ago in their reconnaissance incursion. In their campaigns in Europe, the Hungarians in every country they stayed longer, chose a place to be their permanent camp during their stay in the region (in 926 the
Abbey of Saint Gall, in 937 in France the Abbey of Saint
Basolus near
Verzy, in the same year the meadows of Galliano near
Capua, where they stood for 12 days), so knowing these, it is highly probable, that the principal camp and the rallying point of the Hungarians was on the meadows near the Brenta river. So, without Berengar's knowledge, on the other side of the river were a great number of fresh troops with fresh horses, which just waited to start the battle. ==Battle==