John Boyd (1927-1997) was a military strategist and philosopher—a sort of modern-day Sun Tzu. In addition to revolutionizing fighter plane combat and design, his philosophy of conflict strategy is also applicable to business and politics.
The written works he has left behind consist mostly of some large slide presentations and a short essay. These are archived for free download here: John Boyd Compendium.
Probably the best place to start reading would be the Patterns of Conflict slide presentation. The short essay on Destruction and Creation is also interesting, but will be most useful to those with some background in cognitive psychology (through either eastern philosophy or western science).
Some of the main points from Patterns of Conflict include:
Operate at a faster tempo than the opposition, so their perception of reality will always be out-of-date.
Create disorder, confusion and friction for the opposition by...
getting inside and messing with their Observe-Orient-Decide-Act cycle (O-O-D-A loop),
cultivating "non-cooperative centers of gravity" within them,
exploiting critical differences of opinion, internal contradictions, frictions, obsessions, etc.,
Build a competitive organization based on harmony and trust. Those at the top have the overall strategy, with much responsibility delegated to subordinate groups who have been given "wide freedom, within an overall mind-time-space scheme, to shape/direct their own activities so that they can exploit faster tempo/rhythm at tactical levels yet be in harmony with the larger pattern/slower rhythm associated with the more general aim and larger effort at the strategic level."
Guerilla warfare and blitz are better than wars of attrition.