Swift and Decisive - An Anachronistic Ideal?

Wavell Room Audio Reads

As the famous quote from Sun Tzu's Art of War goes, "rapidity is the essence of war" (兵之情主速), and while the original context behind this adage was more tactical in nature, advocating the use of rapid manoeuvres to dislocate the enemy, it is also reflective of one of the most desired outcomes in war - a swift and decisive victory.
In the same military treatise, Sun Tzu strongly admonished against carelessly resorting to war, highlighting the great strain it places on the state. By extension, if there must be war, it should be kept as brief as possible. Of course, defining an ideal duration is subjective, but the point is that the benefits to be gained through war diminish with time. This is especially true for small states, which have relatively humbler means compared to their larger counterparts.
Indeed, this practical reality is reflected in the mission statement of the Singapore Armed Forces (SAF) which articulates clearly its intent to achieve a swift and decisive victory in the event of war.
Yet, recent conflicts such as the ongoing Russian-Ukraine War and the latest Israel-Hamas war highlight significant challenges toward attaining this strategic ideal. The former will soon enter its third year with no clear end in sight while the latter continues to witness fierce fighting in the Gaza strip more than two months since the commencement of Operation Iron Swords, Israel's military response to Hamas' 7 October surprise attack.
To put this in context, the Six-Day War and Yom Kippur War, two of Israel's most significant military campaigns since independence, did not last more than a month combined. Is the notion of a swift and decisive victory then still feasible in the context of modern warfare, or is it an unattainable ideal?
Keeping Wars Short
The appeal for states to resolve military conflicts expediently is understandable given the costly nature of war today in terms of both men and material. For example, the latest estimated military losses suffered by Ukraine since February 2022 in its ongoing war with Russia range from between 25,000 to 70,000 dead - a staggering number for a military that by the best estimates started out with only about 196,000 active personnel and 900,000 in reserve.
This does not even factor in the number of wounded and war material lost. Then there is the collateral damage, with many Ukrainian cities destroyed in the fighting and millions of citizens displaced. Ukraine's economy has likewise suffered because of the war, with its gross domestic product (GDP) falling by 29.1% in just the first year.
For smaller states, such costs would be simply unsustainable and there is thus even greater impetus to attain a conclusive military outcome in the shortest period possible. With relatively scarcer resources and a lack of strategic depth inherent to having a smaller physical size, entanglements in prolonged campaigns or costly wars of attrition are far from ideal.
Victories in such conflicts are pyrrhic at best while defeat can be fatal to the state's long-term vitality, leaving it vulnerable to the predations of opportunistic aggressors.
Furthermore, the political nature of modern warfare means that the longer a war lasts, the more difficult it is to sustain public and international support, forcing policy makers to settle for a compromised and possibly disadvantageous peace. Already, there are calls for Ukraine to negotiate an end to the war, bearing in mind that it would likely mean surrendering much of the territory it has thus far lost.
Worryingly, such calls have been accompanied by a dangerous faltering of the external military aid that is so essential to Ukraine's war effort.
Similarly, the calls for Israel to rein it its ongoing offensive in Gaza are becoming increasingly vociferous despite its desire to seek a more decisive outcome in the field. This is why Israel's strategic doctrine has historically favoured speedy operations and short wars, noting the possibility of intervention by both reg...