Arrange the parts to form a meaningful sentence: P: turbulent times / Q: not only during war and / R: peace is always the only alternative / S: but also during peaceful times

The complete sentence reads: 'Peace is always the only alternative (R) [during] turbulent times (P) but also during peaceful times (S) not only during war and (Q).' Reading the correct logical flow: 'Peace is always the only alternative [in] turbulent times, not only during war but also during peaceful times.' The sequence RPSQ aligns the main clause first, then turbulent times, peaceful times, and war.