Artillery and air preparation all along the front of the Central Region was soon, on the morning of 4 August, followed by very heavy concentrations in four areas which preceded four powerful armoured attacks, each on a divisional frontage, on thrust lines that had been largely predicted. All four were into the Federal Republic of Germany. In the north, 2 Guards Tank Army pushed in past Hamburg (which had been declared by the
Further south, where French command in an army group task had not yet been established, the thrust of 41 Army out of Czechoslovakia towards Nuremberg, aiming at Stuttgart, made better progress.
Such was the pattern of events, briefly stated, on day one of the Warsaw Pact offensive seen as it were, from a long way up. Lower down, at ground level, things were different. There was noise everywhere, distant noise of bombs or gunfire, noise of aircraft screaming overhead, of tracks clanking and squealing as the tanks hurried by, and sometimes the enormously stupefying impact of a close and direct attack, either of crashing bombs, or multiple rockets with their repeated and violent explosions, or those dreaded automatic mortars which fire five bombs in ten seconds, bringing down a curtain of despair. There was also weariness struggling with responsibility. Everybody was tired. Everyone had something he had to take account of. All this tended to leave otherwise quite sensible and stable men in a quivering condition of uncertainty and shock. Some ran to hide, anywhere. Others walked around in a state of dumb non-comprehension, almost as though in a coma. When the moments passed, as they almost always did, men collected themselves, called up reserves of self-control and stamina which were happily still plentiful if not always inexhaustible, and put things together again.
On the evening of the first day Warsaw Pact gains along the whole front had been considerable. The seizure of Bremen airfield in the north by the Soviet 103 Airborne Division at dawn had been exploited by a motor rifle division quickly flown in under heavy air cover, and a bridgehead had been consolidated across the River Weser in the sector of I Netherlands Corps. Hanover was threatened by 3 Shock Army but I German Corps, though it had been forced back by the weight of the attack some 20 kilometres from the frontier and had taken heavy punishment, was still in good order. Further south, I British Corps had yielded ground west of the Harz mountains while Kassel, at the junction of I British Corps with the Belgians, was under heavy threat, also from 3 Shock Army. Over the boundary between the Northern and Central Army Groups, III German Corps, under command of CENTAG, had been driven back by a powerful assault from 8 Guards Army through the hill country of the Thuringer Wald but yielded no more than 10 to 20 kilometres of ground, while V US Corps on its right was particularly hard pressed defending the more open terrain around Fulda against a determined effort from 1 Guards Tank Army to break through to Frankfurt. The VII US Corps on the right of the V had lost Bamberg in a Soviet penetration by 28 Army of some 30 kilometres but was firm in front of Nuremberg, while II German Corps, having lost ground to an attack by 41 Army from the Carpathian Military District, now deployed in northern Czechoslovakia, was also firm, backed by II French Corps, which had not yet been engaged.