I humbly advise we accept the offer my lord. Why?
1) We need to consolidate the gains we have made. Our supply network has reached its limit, and requires time to recover.
2) We have captured rich areas of China, which will fuel our industries for years to come. The portion that remains to China may not be worth the burden conquest would require.
3) While our soldiers are unmatched in endurance throughout the world, it is prudent to allow them rest - rest before more conquests awaiting them.
4) With war starting in Europe, there may be opportunities to grab territories from Western Imperials while they are distracted. We need to have our soldiers ready to take their rich colonies.
5) Peace will lull our future enemies into complacency. News of war angers the hearts of westerners. Let their eyes only look to Europe, then we can strike again.