https://www.armyrecognition.com/archives/archives-naval-defense/naval-defense-2016/plan-liaoning-aircraft-carrier-csg-crossed-the-first-island-chain-entered-south-china-sea
PLAN Liaoning Aircraft Carrier CSG Crossed the First Island Chain & Entered South China Sea .a The People's Liberat
first island chainaircraft carrierplanliaoningcsg
https://www.atlanticcouncil.org/in-depth-research-reports/issue-brief/south-korea-is-the-ideal-anchor-for-the-first-island-chain/
Jul 10, 2025 - Discussion of the first island chain largely overlooks South Korea, an ideal "anchor" that could prove decisive in a US-China conflict involving...
south koreafirst islandidealanchor