If you want peace, prepare for war.
If you utilize the peace time to get better at war, your adversaries will hesitate in waging a war on you, and hence the time of peace will stretch.
Example: We’re in a competitive industry. Therefore, we should use this time of high growth and less competition (time of peace, in other words) to shore up capital, diversify, invest in revenue streams of future, and hire good talent. If you want peace, prepare for war.