Suetonius, unappalled by the frightful accounts which thronged upon him, held on his course steadfastly with his single legion, broke through the scattered bands of the enemy, and reached Londinium without a check. This place was crowded with Roman residents, crowded still more at this moment with fugitives from the country towns and villas: but it was undefended by walls, its population of traders was untrained to arms, and Suetonius sternly determined to leave it, with all the wealth of the province which it harboured, to the barbarians, rather than sacrifice his soldiers in a vain attempt to save it. The policy of the Roman commander was to secure his communications with Gaul: but he was resolved not to abandon the country, nor surrender the detachments hemmed in at various points by the general rising of the Britons. The precise direction of his movements we can only conjecture. Had he retired to the southern bank of the Thames, he would probably have defended the passage of that river; or had the Britons crossed it unresisted, the historians would not have failed to signalise so important a success. But the situation of Camulodunum, enclosed in its old British lines, and backed by the sea, would offer him a secure retreat where he might defy attack and await reinforcements; and the insurgents, after their recent triumphs, had abandoned their first conquests to wreak their fury upon other seats of Roman civilisation. While, therefore, the Iceni sacked and burned first Verulamium, and next Londinium, Suetonius probably made a flank march towards Camulodunum, and kept ahead of their pursuit, till he could choose his own position to await their attack. In a valley between undulating hills, with woods in the rear and the ramparts of the British oppidum not far perhaps on his right flank, he had every advantage for marshalling his slender forces; and these were increased in number more than in strength by the fugitives capable of bearing arms, whom he had allowed to cling to his fortunes. Ten thousand resolute men drew their swords for the Roman Empire in Britain. The natives, many times their number, spread far and wide over the open plain before them; but the narrow front of the Romans could be assailed by only few battalions at once, and the wagons, which conveyed their accumulated booty and bore their wives and children, thronged the rear and cut off almost the possibility of retreat.