Complex sentence: In the first days of June, Soubise's army assembled near Friedberg in Hesse for an offensive in Hesse, the regiment was part of a detachment under the command of Broglie who followed up Ysenburg during his retreat.
Split into simpler sentences: In the first days of June, Soubise's army assembled near Friedberg for an offensive in Hesse. The regiment was part of a detachment under the command of Broglie who followed up Ysenburg during his retreat.