It was typical of Ferdinand II that while these ‘Bohemian martyrs’ were brought to the gallows, the Habsburg went on a pilgrimage to the great Marian shrine of Mariazell in his native Styria specifically to pray for their souls. In the years that followed, prayer and sword moved in perfect counterpoint for the Habsburg cause. If Ferdinand was the spearhead of spiritual revival, on the battlefield the corresponding military reawakening was to be organised by Wallenstein.

The Bohemian soldier of fortune Albrecht Wenzel Eusebius von Wallenstein (1583-1634) was one of the major figures in the Thirty Years War. His administrative and financial talents made him one of the richest and most powerful men in Europe.

Wallenstein stood out from the newly minted nobility around Ferdinand because of his logistical skills, which he deployed with unrivalled expertise despite his physical disabilities. Plagued by gout which often forced him to be carried by litter, Wallenstein ceaselessly instructed his subordinates to organise his affairs to the last detail. Agriculture was virtually collectivised under his control to ensure that every crop and animal was nurtured efficiently to supply his armies. A fortunate second marriage to the daughter of Count Harrach, one of Ferdinand’s principal advisers, brought him yet more support at court. In April 1625, Ferdinand agreed to Wallenstein raising 6,000 horsemen and nearly 20,000 foot soldiers. Wallenstein’s force gave the Emperor freedom of manoeuvre. He now had formidable forces to counterbalance the armies of the Catholic League led by Tilly, who always showed signs of answering in the first instance to his Bavarian masters rather than to the Emperor Ferdinand.

Count Jean Tserclaes Tilly (1559–1632) was an outstanding product of Jesuit training. First seeing service in Spain, the Walloon learnt the art of war from the age of 15, serving under the Duke of Parma in his war against the Dutch. In 1610, he was appointed commander of the forces of the Catholic League, established in 1609 as a loose alliance of Catholic principalities and minor states. Like Wallenstein, Tilly brought in important reforms, especially from his experience of the formidable Spanish infantry. Nicknamed the ‘monk of war’, he soon proved to be a highly capable organiser of infantry tactics, which were quickly adopted by Ferdinand’s troops.

The infantry at this stage still consisted of pikemen and musketeers. The pikemen wore armour and carried a pike, which at that time was between 15 and 18 feet long, made of ash with a sharp metal point. Their officers carried shorter pikes with coloured ribbons. The musketeers were a kind of light infantry with a light metal helmet, later replaced by a felt hat. The heavy musket they carried needed to be rested on a wooden pole with an iron fork to be fired. The ‘ammunition’ was contained variously in a bandolier, a flask of gunpowder and a brass bottle of combustible material, the so-called Zundkraut as well as a leather bag containing small metal balls. A small bottle of oil was also carried to ensure that the ‘alchemy’ required to fire the weapon functioned smoothly. This was far from straightforward. A hint of the complexity of firing this primitive musket is given by the fact that ninety-nine separate commands were needed to fire and reload the weapon.

A further forty-one commands existed for dealing with the musket at other times. As this suggests, the need to increase the rate of fire and simplify the munitions were priorities for all commanders throughout the Thirty Years War. These problems would only be solved with the advent of the Swedes, who entered the fray against the Habsburg in 1630. They had a modern solution to many of these problems: the introduction of small cartridges wrapped in paper.

The only tactical unit at this time was the company, which was deployed in a large square made up usually of between 15 and 20 companies. This formation was 50 men deep with its flanks protected by 10 rows of musketeers. Despite much practice at marching to form such elaborate formations as the so-called ‘Cross of Burgundy’ or ‘Eight-pointed Star’, it takes little imagination to realise that manoeuvring in such formations was virtually impossible. The idea of marching to a single beat of the drum had still to be widely introduced and cohesive movement was only possible by extended rank.

Where Tilly proved so successful in organising infantry tactics, Wallenstein proved no less formidable in handling cavalry. Cavalry like infantry were divided into heavy and light. The heavy cavalry were cuirassiers and lancers, both armoured down to their boots. In addition to their main weapon, lancers were also armed with a sword and two pistols, symbols of their privileged status as bodyguards to the commanders in the field. The cuirassiers carried the heavy straight sabre or ‘pallasch’, which was designed to cut as well as thrust.

The horsed ‘carabiniers’ were organised as light cavalry as their only armour was a metal helmet and a light breastplate. Equipped with a shorter musket and 18 cartridges, these horsemen also carried pistols and a short sword. The dragoons were also equipped with a short musket and were indeed originally horsed musketeers. As the barrels of their muskets were often decorated with a dragon, they became known as dragoons. Deployed as advance guard cavalry they carried an axe with which, in theory, they could batter down doors and gates.

To these conventional groupings Wallenstein added new elements. An important part of the horsed advance guard was the ‘ungrischen Hussaren’, or Hungarian hussars. Together with the Croats they formed the irregular elements of the army who could be deployed to plunder and terrorise their opponents as well as perform scouting and reconnaissance.

The origin of the term ‘hussar’ to this day is a source of debate. The word most likely stems from the Slavic Gursar or Gusar. Other theories link the word to the German Herumstreifender or Corsaren; this last with its imagery of piracy perhaps being nearer to the truth than many a Hungarian would care to admit. Famous for giving their enemies no quarter, they became the nucleus of what would become the finest light cavalry in the world.

As with the infantry, the cavalry were grouped into companies. Often these were called Cornetten and hence the title of the junior officer of each such company was ‘Cornet’. As these were formed into a square, the custom arose to call four of these companies a ‘squadron’ from the Italian quadra, meaning square. In theory every cavalry regiment consisted of ten companies each of a hundred riders but in reality no cavalry regiment had more than 500 men.

Drill of these formations was aimed at disordering infantry by charging the last 60 paces at the enemy’s pikemen or cavalry. There was to be no firing from the saddle until the cavalry could ‘see the white in the eye of the foe’ (‘Weiss im Aug des Feindt sehen thut’). Led by such Imperial officers as Gottfried Pappenheim, famous for his many wounds and refusal to be impressed by titles, or the redoubtable Johann Sporck, a giant of a man with hair like bronze, perhaps the most feared cavalry general of his time, the Imperial cavalry was trained in shock tactics relying on aggression and surprise to demoralise their opponents.

The artillery remained a strict caste apart. Each unit of artillery was in theory organised to have 24 guns of different calibre. Mortars and other guns were added to each unit. Every gun had as its team a lieutenant and eleven gunners. These were supported by the so-called Schanzbauern or Pioneers, who were organised into units as large as 300 under an officer of the rank of Captain. The unit had its own flag made of silk which displayed as its badge a shovel and its men were also skilled carpenters able to strengthen bridges, not just demolish them.