Complex sentence: The First Canadian Army held a static line along the river Meuse (Maas) from December through February, then launched Operation Veritable in early February, cracking the Siegfried Line and reaching the banks of the Rhine in early March.
Split into simpler sentences: The First Canadian Army held a static line along the river Meuse (Maas) from December through February, then launched Operation Veritable in early February. The Siegfried Line was broken and the Army reached the banks of the Rhine in early March.