The Spanish victory at Kallo in 1638 halted a Dutch-French attempt to besiege Antwerp and demonstrated the continued effectiveness of the Spanish tercios.
Key Facts
- Date
- 20–21 June 1638
- War
- Eighty Years' War (second phase)
- Location
- Left bank of the Scheldt, near Antwerp
- Forts contested
- Kallo and Verrebroek
- Dutch transport vessels
- 50 barges transferred to Nassau-Siegen
- Dutch outcome
- Force routed; many drowned or captured
Location
Cause → Event → Consequence
Following the Dutch recapture of Breda in 1637, the Dutch Republic and France agreed to jointly pressure the Spanish Netherlands in 1638. Frederick Henry of Orange planned to besiege Antwerp by advancing on both banks of the Scheldt, sending Count William of Nassau-Siegen with 50 barges to seize the forts of Kallo and Verrebroek on the western bank while France invaded from the south to divide Spanish forces.
Nassau-Siegen's force initially captured Kallo and Verrebroek but stalled and entrenched. On the night of 20–21 June, Cardinal-Infante Ferdinand launched a counter-attack with tercios along three narrow fronts, driving the Dutch from outer works but failing to take the main forts. When exhaustion and supply shortages forced a Dutch re-embarkation the following night, Ferdinand struck again, routing the retreating force and causing many soldiers to drown or be captured.
The Spanish victory at Kallo ended the Dutch-French threat to Antwerp and, together with the successful defenses of Saint-Omer and Geldern that same year, confirmed the Spanish tercios as a formidable battlefield force. The victory was exploited for Catholic propaganda and commemorated in paintings, poems, and popular songs.
Belligerents & Mobilization Analysis
Side A
1 belligerent
Count William of Nassau-Siegen, Frederick Henry of Orange.
Side B
1 belligerent
Cardinal-Infante Ferdinand.