China has launched aggressive and unprecedented military exercises near Taiwan. As the long-range, live-fire drills began with China’s Eastern Theatre Command firing several ballistic missiles, Taiwan said that it was “preparing for war without seeking war”. What is Taiwan’s strategy to fight back in case China attempts to occupy it by force?


The porcupine doctrine”

  • The “porcupine doctrine”, which was proposed in 2008 by US Naval War College research professor William S Murray, is a strategy of asymmetric warfare focused on fortifying a weak states defences to exploit the enemys weaknesses rather than taking on its strengths.
  • It is about building defences that would ensure that Taiwan “could be attacked and damaged but not defeated, at least without unacceptably high costs and risks”, Murray wrote in the Naval War College Review.
  • Dr Zeno Leoni, a lecturer at the Defence Studies Department of King’s College London, identifies three defensive layers in the porcupine approach. “The outer layer is about intelligence and reconnaissance to ensure defence forces are fully prepared. Behind this come plans for guerrilla warfare at sea with aerial support from sophisticated aircraft provided by the US.
  • The innermost layer relies on the geography and demography of the island. The ultimate objective of this doctrine is that of surviving and assimilating an aerial offensive well enough to organise a wall of fire that will prevent the Chinese People’s Liberation Army (PLA) from successfully invading.”
  • While the outer surveillance layer would work to prevent a surprise attack, the second one would make it difficult for China to land its troops on the island in the face of a guerrilla campaign at sea using “agile, missile-armed small ships, supported by helicopters and missile launchers”, Dr Leoni wrote.
  • Even once Chinese boots were on Taiwanese ground, the island’s mountainous topography and urbanised environment would give defenders an advantage when it comes to hampering the progress of an invasion.


What is Taiwan doing about it?

  • Taiwan underlined its shift to an asymmetric approach by adopting the Overall Defence Concept (ODC) in 2018. The ODC was developed and introduced during the tenure of Admiral Lee, who served from 2017 to 2019.
  • “The ODC is Taiwan’s current strategy for dealing with a potential Chinese invasion in a resource-constrained environment” while using its “natural advantages, civilian infrastructure and asymmetric warfare capabilities”. These asymmetric systems, must be cost-effective, easy to maintain, and numerous to disperse at strategic points.
  • Taiwan, it said, must sustain its capabilities beyond the first phase of a full-scale war by banking on “mobility, concealment, camouflage, deception, electronic jamming, operational redundancy, rapid repair and blast mitigation”.
  • The ODC redefines “victory” in event of a Taiwan-China war as “foiling PLAs mission of successfully invading and exerting political control over Taiwan”.