Military aviation law for ADIZ needed, expert says

A military aviation law would provide air defense units with rules for handling unidentified aircraft outside Taiwan’s airspace, an expert said

Taiwan should create a military aviation law to give legal protection to its air defense identification zone (ADIZ) in counteracting Chinese People’s Liberation Army (PLA) drones, National Defense University associate professor of law and military officer Lee Yenchang (李彥璋) said on Saturday.

The PLA has increased its efforts to compress Taiwan’s defensive area by crossing into the latter’s ADIZ with ships and aircraft including uncrewed aerial vehicles, major Yen wrote in an article published in this month’s issue of Air Force Bimonthly.

The Chicago Convention on International Civilian Aviation, which governs transnational civilian flights, neither allows nor forbids governments from staking out its ADIZs, he said.

This means ADIZs have an unclear legal status in international law, and the right to self-defense inside an ADIZ is conditional, he said.

The legitimate exercise of the right to self-defense by a nation state must be an appropriate, necessary, incremental and proportional response to actions causing actual harm, instead of merely posing a military threat, Yen said.

The bounds of the nation’s ADIZ were unilaterally established by the Civil Aviation Administration and far exceed the military’s requirement for a reasonably delineated defensive zone, he said.

The military and civilian administration of the zone should have been kept separate due to differences in their purpose, even if the designated air space were identical, Yen said.

The nation did not create clear legal guidelines for the armed forces dealing with foreign aircraft to counter Beijng’s challenges to its authority, he said.

Legislating a military aviation law would address these issues and form the basis of a common standard to govern ADIZ claims in the region, Yen said.

International law is indifferent to ADIZs which are created unilaterally by national governments, Institute for National Defense and Security Research research fellow

Su Tzu-yun (蘇紫雲) said.

The proposed promulgation of a military aviation law would provide Taiwanese air and air defense units with rules for handling unidentified aircraft outside the nation’s sovereign airspace, he said.

Most countries use their civil aviation laws to govern ADIZs enforcement, but Taiwanese civil aviation authorities are not sufficiently familiar with military requirements to propose legislation on the matter, he added.

Institute associate research fellow Shu Hsiao-huang (舒孝煌) said that Taiwan has to rethink the bounds of its ADIZ, which extends into the Chinese provinces of Zhejiang and Jiangxi.

These ADIZ claims might be valid in domestic law but are meaningless because they include airspace that the nation’s military aircraft cannot go into, he added.