Complex sentence: Liman emphasised a policy of mobile defence by the divisions in the three defensive areas, rather than persist with the attempt to guard the coast with continuous defences and the redeployment was carried out by night, to evade scrutiny by Allied reconnaissance aircraft.
Split into simpler sentences: Liman emphasised a policy of mobile defence by the divisions concentrated in the three defensive areas, rather than persist with the attempt to guard the coast with continuous defences. The redeployment was carried out by night to evade scrutiny by Allied reconnaissance aircraft.