Central to Berger’s vision is the ability to operate within an adversary’s (read China’s) bubble of air, missile, and naval power (which the Marine Corps calls the weapons engagement zone, or WEZ). The concept is that the Marine Corps will be a “stand-in force” that will operate within this WEZ, not a stand-off force that must start outside and fight its way in. As the guidance states: “Stand-in forces [are] optimized to operate in close and confined seas in defiance of adversary long-range precision ‘stand-off capabilities.’”
One requirement to implement this concept is developing “low signature, affordable, and risk worthy platforms” because existing ships and aircraft are the opposite—highly capable but expensive, few, and highly visible.
Another element of the concept is “distributed operations,” the ability of relatively small groups to operate independently rather than as part of a large force, as in previous wars. “We recognize that we must distribute our forces ashore given the growth of adversary precision strike capabilities.” Thus, small Marine forces would deploy around the islands of the first island chain and the South China Sea, each element having the ability to contest the surrounding air and naval space using anti-air and antiship missiles. Collectively, these forces would hem in Chinese forces, prevent them from moving outward, and ultimately, as part of a joint campaign, squeeze them back to the Chinese homeland.
A third element was institutional: the Marine Corps would leave sustained ground combat to the Army and focus on the littorals. Ground wars in the Middle East, North Korea, and Europe would be Army responsibilities.
The final element was political: General Berger judged that defense budgets are likely to be flat for the foreseeable future. “My assumption is flat or declining [budgets], not rising…. If [an increase] happens, great, but this is all built based on flat or declining [budgets].” Thus, unlike in the previous five years, when rising budgets allowed new investment and stable force levels, trade-offs would now be necessary. If the Marine Corps wanted to invest in new capabilities, it had to cut some existing units.
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Maintaining small and vulnerable units deep inside an adversary’s weapons engagement zone will be challenging. Even small units need a continuous resupply with fuel and munitions. If that is not possible, or if the Chinese figure out a way to hunt these units down, the concept collapses.
The 10-year plan to revamp the Corps, scheduled to be unveiled this week, follows years of classified U.S. wargames that revealed China’s missile and naval forces to be eroding American military advantages in the region.
“China, in terms of military capability, is the pacing threat,” Gen. David Berger, the Marine Corps commandant, said in an interview. “If we did nothing, we would be passed.”
To reinvent themselves as a naval expeditionary force within budget limits, the Marines plan to get rid of all of their tanks, cut back on their aircraft and shrink in total numbers from 189,000 to as few as 170,000, Gen. Berger said.
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Among an array of new high-tech programs, the Air Force is developing a hypersonic missile that would travel five times the speed of sound, and has been experimenting with the “loyal wingman,” an unmanned aircraft that would carry bombs and fly in formations with piloted planes.
The Army, which has established a Futures Command to oversee its transformation, tested a cannon at the Yuma Proving Ground earlier this month that fired shells about 40 miles—roughly twice the range of current systems. The Navy, for its part, has been developing tactics to disperse aircraft carrier battle groups to make them a less inviting target for Chinese medium-range missiles, and it is pursuing the development of unmanned submarines and ships.
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The Pentagon’s $705 billion spending request for the 2021 fiscal year includes the largest research-and-development budget in 70 years: nearly $107 billion.
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If war broke out, U.S. officials concluded, China could fire hundreds of missiles at U.S. and allies’ air bases, ports and command centers throughout the Pacific, jam the U.S. military’s GPS, attack American satellite systems and use its air defenses to keep U.S. warplanes at bay.
Russia similarly would use the surface-to-surface missiles, air defenses and antiship missiles deployed in Kaliningrad and on the Crimean peninsula in the Black Sea, which Moscow seized from Ukraine in 2014.
The [Marines’ Combat Development Command in Quantico, Va.] has run classified wargames such as “Pacific Surprise” and “Ghost Fleet,” which looked at how the Marines might counter the Chinese threat in the decade ahead.
For the Marines, the new Pentagon strategy raised questions about whether it should adapt for a toe-to-toe fight against China or should concentrate on lesser but still challenging dangers.
“The wargames do show that, absent significant change, the Marine Corps will not be in a position to be relevant” in a clash with a “peer competitor,” said Lt. Gen. Eric Smith, who succeeded Gen. Berger as the head of that command.
Gen. Berger’s answer was to reconfigure the Corps to focus on a China threat. The Marines would fight within reach of Chinese missiles, planes and naval forces to blunt any aggression. While other services might lob missiles from long range, the Marines, in military parlance, would operate inside “the weapons engagement zone.”
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At the heart of Gen. Berger’s plan is the establishment of new naval expeditionary units—what the Marines call “littoral regiments”—whose mission would be to take on the Chinese navy.
If a military confrontation loomed, the regiments would disperse small teams of Marines, who would rush in sleek landing craft to the tiny islands that dot the South and East China Seas, according to Gen. Berger and other senior Marine officers. Armed with sensor-laden drones that operate in the air, on the sea and underwater, the Marines would target Chinese warships before they ventured into the wider Pacific Ocean. The Marine teams, which could have 50 to 100 personnel, would fire antiship missiles at the Chinese fleet. Targeting data also would be passed to Air Force or Navy units farther away, which would fire longer-range missiles.
To elude retaliatory blows, the Marines would hop from island to island every 48 or 72 hours, relying on a new generation of amphibious ships, which could be piloted remotely. Other Marine teams would operate from U.S. warships with decoy vessels nearby.
Gen. Berger said the wargames showed that the new Marine capabilities and tactics would create “a ton of problems” for the Chinese forces. “It is very difficult for them to counter a distributed naval expeditionary force that is small, that is mobile, but has the capability to reach out and touch you,” he said.
To carry out the strategy, the Marines would deploy new missile batteries, armed drone units and amphibious ships. A major push is being made to ease the logistical burden, such as exploring the use of 3-D printing on the battlefield to make spare parts. The strategy requires deeper integration with the Navy, and Marine teams might perform other missions like refueling submarines or sub-hunting planes. While most of the effort to transform the Corps is focused on the Pacific, the Marines would retain other forces to respond to crises world-wide, including floating 2,200-strong Marine expeditionary units
To fund the new capabilities, the Marines will dispense with all of its tanks over the next few years, eliminate its bridge-laying companies and cut back on aviation and howitzers. “We need an Army with lots of tanks,” Gen. Berger said. “We don’t need a Marine Corps with tanks.”