"Good! Good!" said Treebeard. "But I spoke hastily. We must not be hasty. I have become too hot. I must cool myself and think..." Thus the great Ent spoke until due deliberations finally saw 'the Ents ma[king] up their minds rather quickly, after all...' and hastening off to war with Isengard, Representative of the Headquarters of the Now Evil Wizard Saruman...

And thus and so 'the world of men' still arrives at the ever weighty decision as to whether (or not) to go to war and fight to the death...often for causes of which they really 'know not what'.

And though people throughout the ages, especially the last two millennia, have argued somewhat incessantly at critical junctures in history about there being such a thing as a 'just war', they have often lived to regret it...

Yes, Treebeard and Co had more than sufficient grounds for getting their knickers in the proverbial knot over the dire and diabolical fate of their beloved fellow trees. 

And yet the Good Book whose writings doubtless ofttimes inspired both C S Lewis and J R R Tolkien in their epic tales of the grand myths backgrounding Western history in particular...

...contains simultaneously the following two conflicting and contradictory admonitions (admittedly each given in a specific historical context):

Scatter the people who delight in war.

Cursed be he who holds back his hand from [shedding] blood.

Or as wise King Solomon once memorably put matters:

There is a time for war and a time for peace...a time for every matter under the sun.

May human leadership have equal wisdom (and nous) - which Solomon himself, whose name mean 'peaceful' (like the Pacific Ocean), admittedly didn't ever and always display - especially in these fraught days of Earth's ever-troubled history, to discern which is most appropriate when...

...so we in our day may in our case avoid a 'battle for [Middle] Earth' which leaves us all quite literally done and dusted...for good/el permanente!