Located at the top of the ground floor of the building at the intersection of Via Porto Innocenziano (#28)  and Via Molo Innocenziano, adjacent to the traffic circle.

An inscribed white marble plaque about 2 ft by 3 ft.

The plaque was placed by the local Anzio Beachhead Museum (See this site for more on this museum) in 1998.

The US Navy played a significant role in the Anzio landings – Operation Shingle in January-May 1944.

Per the US Navy History and Heritage Command:

Joint U.S.–Royal Navy Task Force 81 (TF-81), commanded by Rear Admiral Frank J. Lowry, USN, provided the naval forces to support the landings. The task force—consisting of two headquarters ships, two submarines, four cruisers, 28 destroyers, 103 minor warships and other vessels, and 241 landing ships and craft—steamed from Naples on 21 January. The task force arrived off Anzio just after midnight on 22 January, and the landings commenced at 0200.

D-Day went remarkably smoothly, aided by calm seas. Most enemy mines were cleared from the approach lanes despite the task force’s minesweepers having only a few hours to accomplish their mission. However, at 1010, the minesweeper Portent (AM-106) became the first ship lost in the operation when it struck a mine and sank with a loss of 18 men. Fighter-director HMS Palomares also hit a mine and was towed to Naples. Enemy resistance on shore was virtually nonexistent, consisting mostly of sporadic artillery fire. Luftwaffe anti-shipping attacks were also light, although a 500-pound bomb struck and sank LCI-20.  Brooklyn (CL-40) and cruisers HMS Penelope, Orion, and Spartan provided naval gunfire support for the few targets that were encountered on shore, and the Allied air forces flew over 1,200 sorties to seal off the beaches and provide air cover for the disembarking convoys. By the end of D-Day, over 36,000 men, 3,000 vehicles, and an initial stockpile of supplies—90 percent of the initial assault load—had been delivered to the Anzio beachhead with light casualties. The operation had achieved total surprise.

Over the course of the next several months, TF-81 continued to provide support to Operation Shingle.  US Navy ship losses included:

-the minesweeper Portent (AM-106) became the first ship lost in the operation when it struck a mine and sank with a loss of 18 men

- a 500-pound bomb struck and sank LCI-20.  

-A bomb hit Plunkett (DD-441), killing 53 crew members and forcing her withdrawal

-A near-miss forced Prevail (AM-107) to withdrawl.

 - either a mine or a guided bomb caused an explosion on Mayo (DD-422), killing five sailors and knocking her out of action. Mayo was the fourth destroyer of TF-81 lost in 22 hours.

-Guided bombs sank a third Liberty ship, Samuel Huntington, 

-German air raids sank Liberty ship Elihu Yale and LCT-35 on 15 February, killing 12

-on 8 February, a 170-mm shell crashed into the bridge of Ludlow (DD-438), landing directly between Commander Liles Creighton’s legs, badly burning him and piercing to within three feet of the ship’s hull. Fortunately, the projectile was a dud.

Operation Shingle, which ended with Operation Diadem in May 1944, had cost more than 23,000 British and American combat casualties, approximately 4,400 of whom were killed in action. At least 160 U.S. Navy personnelwere killed in action at Anzio. Four months of continuous operations while exposed to actual or threatened enemy bombs, shells, and mines took their toll, and many more sailors were evacuated as non-combat casualties.

The nearby Rome-Sicily American Cemetery in Nettuno holds the remains or remembers 1162 US Naval personnel for their sacrifice during the Italian Campaign.

The text on the plaque is written in English and Italian.  The English version reads:

ANZIO BEACHHEAD MUSEUM

1944               {ANCHOR SYMBOL}                      1998

TO ALL THE SAILORS WHO LOST THEIR LIVES

DURING HE ANZIO LANDINGS AND BATTLES

LEST WE FORGET

ANZIO 25 GUIGNO (JUNE) 1998