u/Stormtemplar has already linked to past discussion on VDH's work on Greek warfare, and I don't feel any need to add to that.

However, VDH does more than write about Greek warfare. He claims that Greek warfare, characterised by decisive battle between hoplite armies (see the past discussed mentioned above for more on that), is a general Western way of warfare, characterised by both sides seeking decisive battle. To quote VDH (The Western Way of War, pg 9),

the desire to deliver fatal blows and then steadfastly to endure, without retreat, any conterresponse---have always been the trademark of Western armies. ... It is this Western desire for a single, magnificent collision of infantry, for brutal killing with edged weapons on a battlefield between free men, that has baffled and terrified our adversaries from the non-Western world for more than 2,500 years

VDH divides the world into two: the West, whose armies have always sought decisive battle, and the non-West, whose armies avoid decisive battle. The problem with this division is that it isn't supported by evidence. Based on the evidence, both West and non-West are united by armies that believe they will win a decisive battle seeking decisive battle, and armies that believe they will lose a decisive battle seeking to avoid decisive battle. The weaker army might either avoid battle completely, or seek a defensive victory (either by defending a fortress or fortified city in a siege, or a to defend a pass, river crossing, etc.). Contrary to VDH's claims about the non-West, there are many examples where two non-Western armies sought, or at least made no apparent attempts to avoid, decisive battle (Angora 1402, Ottomans vs Timurids; Terek River 1395, Golden Horde vs Timurids; Panipat 1526, Delhi Sultanate vs Babur; Sekigahara 1600, Toyotomi vs Tokugawa; Shanghai 1937, China vs Japan; Walaja 633, Caliphate vs Persia; and many, many, more). There are also many, many examples of Western armies seeking to avoid decisive battles (thus the many sieges in Western military history).

Even Clausewitz, the High Priest of Decisive Battle, writes in On War about the avoidance of battle (book 3, chapter 8), and gives well-known examples of Western armies avoiding decisive battle (Fabius vs Hannibal).

The gross discrepancy between VDH's argument in The Western Way of War and the evidence, whether through ignorance of the evidence or (worse) through deliberate disregard of the evidence, is enough to condemn this book as extremely poor history, whatever the merits of VDH's work on Greek warfare might be.

While others may have their own contributions, u/iphikrates wrote fairly extensively on the subject here