U.S. Marines Expand Presence on Strategic Pacific Islands


Overview
The United States is increasing its forward military presence near China by deploying Marine forces aboard the expeditionary sea base ship USS Miguel Keith. This afloat platform extends the reach of the Marine Rotational Force-Darwin (MRF-D), based in northern Australia, across the contested island chains of the western Pacific. This move underscores Washington’s commitment to countering Beijing’s growing influence and military footprint in the Indo-Pacific.

The Island Chain Strategy
At the heart of this deployment lies the U.S. island chain strategy: three north-south defensive lines stretching across the Pacific. By leveraging allied territory and naval access points, the U.S. can project power, deter aggression, and defend against potential Chinese military action. The second island chain, where the USS Miguel Keith is homeported in Saipan, plays a pivotal role in supporting operations deeper into the Pacific.

Why This Matters
Operating from a sea base offers the Marines flexibility and unpredictability. Unlike fixed land bases, the Miguel Keith allows U.S. forces to maneuver rapidly across archipelagic terrain and forward locations ashore, complicating adversary planning. This is especially important at a time when Chinese forces are building out anti-access/area-denial (A2/AD) capabilities designed to push U.S. forces farther from contested waters.

Recent Exercises
The deployment follows recent exercises across the first and second island chains:

  • Exercise Alon 25 in the Philippines (August 15–29).
  • Exercise Super Garuda Shield 25 in Indonesia (August 25–September 4).

These multinational drills reinforced cooperation with allies, improved readiness, and signaled a unified front in the region.

Implications for the Navy
The Navy’s role in enabling sea-based expeditionary operations is central. With amphibious ships like the USS New Orleans temporarily out of service due to fire damage, expeditionary sea bases provide a critical stopgap. They allow Marines and sailors to continue distributed operations, demonstrating the Navy’s adaptability in keeping forward presence credible.

Implications for Our Allies
For Australia, the Philippines, and Indonesia, U.S. deployments reinforce security guarantees. The Marines’ message, as articulated by Colonel Jason Armas, was clear: America and its allies “stand ready to maneuver, sustain and fight as one force.” This is reassurance at a time of rising Chinese assertiveness in the South China Sea and beyond.

Why Americans Should Care
This is not simply a faraway deployment. The Pacific is a lifeline for U.S. trade, energy, and global communications infrastructure. Securing these waters ensures that Americans at home continue to benefit from stable supply chains and open sea lanes. A failure to hold the line in the Pacific would ripple into our economy and national security alike.

Closing Call
As the U.S. strengthens its presence in the Indo-Pacific, the question is not whether we can afford to maintain this posture, but whether we can afford not to. A stronger Navy and Marine Corps presence ensures deterrence, protects trade, and preserves peace.

That’s why we launched Charting the Course: Voices That Matter — a 24-part educational series breaking down how we got here, what went wrong, and what must happen next. Our goal is simple: educate the public, connect the dots, and build the support needed to close the readiness gap before it’s too late.

Let’s roll.


Australia’s Naval Reality Check—America Should Take Notes

If Australia is vulnerable, what does that mean for America?

Bill Cullifer, Founder
Bill Cullifer, Founder

In a recent article for The Australian, Jennifer Parker—an expert associate at the National Security College, Australian National University, and an adjunct fellow in naval studies at the University of New South Wales Canberra—examined China’s latest naval maneuvers near Australia. Her analysis sheds light on vulnerabilities that should concern not just Australia, but the United States as well.

A stark reality: China’s naval task force is actively testing Australia’s response—militarily, politically, and diplomatically. A Chinese fleet operating near Australia’s waters isn’t just a message to Canberra; it’s a signal to the world that Beijing is expanding its reach.

For Americans, this should be a wake-up call. Australia, a key U.S. ally, has long enjoyed security from major conflicts. Yet, China’s maneuvers off its coast expose vulnerabilities in a way that should concern every nation reliant on maritime security, global trade, and naval power.

If China can challenge Australia’s sovereignty at sea today, what stops it from doing the same to America and its allies tomorrow?

China’s Strategy: Testing and Expanding

The deployment of a Chinese naval task group so close to Australia is no accident. It follows a pattern:

  • Probing reactions. Just as it has done in the South China Sea, the Taiwan Strait, and Latin American ports, China is assessing how the world will respond to its growing military presence.
  • Disrupting global security norms. Conducting live-fire drills near civilian air routes, refusing to issue proper warnings, and testing defense response times all serve a greater goal—normalizing an expanded Chinese naval footprint.
  • Challenging the free world. This is about more than Australia. China is signaling that it has the capability—and the intent—to pressure democratic nations and reshape global power structures in its favor.

This matters to the United States because we rely on the same global shipping lanes, trade networks, and security partnerships that China is testing right now.

Lessons for the U.S. Navy and America

Jennifer Parker’s article points out an uncomfortable truth: Australia’s navy is struggling to meet growing demands. Its limited number of warships, outdated replenishment capabilities, and defense spending shortfalls are now under the spotlight.

But let’s not pretend this problem is unique to Australia.

  • The U.S. Navy is stretched thin. With growing commitments in the Indo-Pacific, Middle East, and beyond, America is already balancing a smaller fleet against greater global threats.
  • Shipbuilding capacity is a bottleneck. While China launches warships at record speed, the U.S. struggles to maintain its current fleet.
  • Defense funding debates mirror Australia’s. At just 2% of GDP, U.S. defense spending is below Cold War levels, and ship procurement continues to face budgetary and political hurdles.

Australia’s vulnerabilities should be a case study for the United States. If a key U.S. ally is struggling to keep pace with China’s naval expansion, America cannot afford to take its own naval dominance for granted.

What Needs to Happen Next?

The right response is not panic—it’s preparation. America must learn from Australia’s situation and take the following steps:

  1. Increase Naval Readiness
    • The U.S. must expand and modernize its fleet, ensuring it has the ships, submarines, and logistical support needed to deter threats.
    • Fleet maintenance and shipyard infrastructure must be prioritized so that existing assets remain operational.
  2. Strengthen Strategic Alliances
    • The U.S.-Australia partnership is critical—joint naval exercises, intelligence sharing, and strategic basing agreements must be expanded.
    • Coordination with Japan, the Philippines, India, and other Indo-Pacific allies must also be reinforced.
  3. Engage the American Public
    • Most Americans aren’t aware of how dependent the U.S. economy and security are on naval power.
    • China isn’t just flexing its military strength—it’s waging a long-term strategic contest to control global trade, technology, and resources.
    • If we don’t educate and rally support for a stronger Navy now, we risk falling behind when it matters most.

Final Thought: A Call to Action

Australia is waking up to the reality that it must invest in naval power to protect its interests. America should take this moment to do the same.

We don’t need alarmism. We need action.

The choice is simple: Invest in a stronger Navy today, or risk facing a crisis tomorrow.