PLA Modernization Push Pressures US First Island Chain

The People’s Liberation Army (PLA) marked its 99th anniversary on 1 August 2026 — exactly one year from the deadline for its 2027 centenary goal of becoming a “world-class military” — and analysts say the force is progressing in ways that could test the US-led defence line along the first island chain. In an analysis published for the anniversary, the South China Morning Post reports that Beijing has urged the PLA to transform into a world-class military by the mid-21st century, “intent on piercing US-led chokepoints along an arc of islands extending from Japan through Taiwan to the Philippines.”

A Cold War concept at the centre of a modern rivalry

The first island chain is the arc of archipelagos and territory running from the Japanese archipelago through Taiwan and the Philippines to the Malay Peninsula. Conceived by US statesman John Foster Dulles in 1951 during the Korean War, the chain underpins a US-aligned security architecture in the Western Pacific. Chinese strategists view it as both a constraint on the PLA’s freedom to manoeuvre in a conflict and the likeliest entry route for US and allied forces in a regional crisis.

Long associated with Cold War-era strategy, the first island chain has become the principal arena of military competition between China and the United States, with the Pentagon’s latest China Military Power Report identifying it as central to Beijing’s regional strategy. The report, released in December 2025, describes the chain as the “strategic center of gravity” for China’s goals in the region, according to SCMP’s reporting.

Three areas of PLA progress

A year ahead of its 2027 centenary goal, the PLA has shown progress in areas that could challenge the US defence line, SCMP reports — specifically its dual-carrier operations, large-scale arms production and improved nuclear deterrence beyond the island chain. The analysis, by defence correspondent Gabriel Dominguez, is the second part of a two-part SCMP series marking the PLA’s 99th anniversary.

China security analyst Andrew Erickson writes that while the Pentagon’s 25th annual report documents simultaneous disruption and progress — including leadership purges and procurement-related investigations across China’s military and defence industry — it concludes that Beijing continues to advance toward the 2027 “Centennial Military Building Goal” and associated warfighting capabilities. His key takeaway: organisational churn should not obscure continued Chinese military modernisation momentum toward 2027 and beyond.

Washington and its allies push back

The US and its allies have also ramped up their response, including the expansion of American base access in the Philippines and increasingly sophisticated defence drills involving Washington’s regional partners. The Pentagon report characterised Beijing’s military expansion as “historic,” noting plans to field six additional aircraft carriers by 2035 — bringing the projected total to nine.

Taiwan, located at the midpoint of the chain, remains the central flashpoint. Beijing views the island as part of its territory, while Washington and its allies emphasise the importance of Taiwan Strait stability. Analysts say this makes the chain the most probable entry point for US and allied forces in any regional contingency — and the most likely arena for confrontation.

Divergent narratives over the chain’s future

Beijing, for its part, frames the first island chain as an illegitimate containment scheme. Chinese military experts argue the chain “is intended to confine China and Russia to their near seas and coastal waters,” as the Global Times reported in July, pointing to expanded China-Russia joint patrols through strategic waterways as evidence that such chokepoints are no longer viable constraints.

The competing narratives reflect a deeper strategic question: whether the US-led defence line can hold as China’s naval and nuclear capabilities expand. The SCMP analysis’s framing — “the numbers game” — underscores the quantitative dimension of the competition, one in which shipyards, carrier programmes and missile inventories increasingly determine the balance of power.

What to watch next

With one year to go before the PLA’s centenary milestone, the first island chain is likely to remain the leading edge of US-China military competition. Watch for further PLA capability milestones ahead of August 2027, continued US-Japan-Philippines force posture adjustments, and whether the numbers game tilts further in Beijing’s favour as both sides expand their arsenals and alliances.