The United States entered the war after the attack on Pearl Harbor on December 7, 1941, though the country had already been supplying Britain and the Soviet Union under Lend-Lease for most of that year. Mobilization was immediate and enormous. By 1945 roughly sixteen million Americans had served in uniform, out of a population of about 132 million, a level of participation the country has not approached since.
In Europe and the Mediterranean, American ground forces fought first in North Africa in late 1942, then in Sicily and up the Italian peninsula through 1943 and 1944. The Normandy landings on June 6, 1944 opened the Western Front; the campaign that followed carried through the hedgerows of Normandy, the liberation of Paris, the Ardennes counteroffensive in the winter of 1944–45, and the crossing of the Rhine. Germany surrendered on May 8, 1945.
Hundreds of civilian manufacturers held contracts. That is why two jackets of the same specification can differ in stitching, hardware, and label, and how a piece gets dated.
The Pacific was a different war fought by the same army, navy, and Marine Corps. It moved by island and by sea: Guadalcanal beginning in August 1942, then Tarawa, the Marianas, the return to the Philippines, Iwo Jima in February 1945, and Okinawa from April to June. Distances were vast, the climate ruined equipment, and casualties in the final campaigns were severe. Japan surrendered in August 1945, following the atomic bombings of Hiroshima and Nagasaki and the Soviet entry into the war against Japan.
Behind both theaters was an industrial effort that shaped nearly everything a collector handles. Production was spread across hundreds of civilian firms working to government specification, and specifications changed as the war went on, which is why dating a piece usually means reading its label, hardware, and stitching rather than trusting its general appearance.
Around 405,000 Americans died in the war. Most families kept something: a jacket in a cedar chest, a photograph album, a folded flag, a box of insignia in a drawer. A great deal of what reaches the market today comes out of those households, two or three generations on, which is why the paperwork so often matters more than the object it came with.
What you typically encounter
Uniforms
Service coats, field jackets, HBT work clothing, Ike jackets. Interior labels, contract dates, and laundry numbers are often the fastest route back to the original owner.
Insignia
Shoulder sleeve patches, distinctive unit insignia, rank and qualification badges. Wartime and postwar production differ in weave and backing; reproductions are common, so construction matters more than appearance.
Documents
Discharge papers, pay books, ration cards, V-mail, award citations, photographs. Paper is where provenance usually comes from; one named document can anchor a whole group.
Field gear
Helmets and liners, cartridge belts, haversacks, canteens, mess kits, entrenching tools. Dated hardware and maker's marks are usually stamped or inked in place.
A note on these pages. These are short educational overviews, written to give context to the objects I sell. They are not exhaustive histories. For serious research, start with the National Archives and the service branch historical centers.