US Army 145th Vietnam Aviation Battalion Enamel Pin

The brooch has a pin attachment on the back

It measures approximately 1.7 x 2 cm

Lapel pin or hat pin of the 145th Aviation Battalion, a unit of the United States Army.

The pin commemorates the battalion as the "First in Vietnam."
The shield is divided into three sections: red on the left, blue on the right, and a black diagonal band.

In the center, there is a double-bladed dagger pointing upwards.

Under the dagger are the inscriptions "145" and "AVN BN" (short for Aviation Battalion).The United States Army (often abbreviated to US Army) is the largest of the armed forces of the United States of America.

The original nucleus was the Continental Army, established on June 14, 1775, before the Declaration of Independence, to face the foreseeable war against the forces of the United Kingdom.

In fiscal year 2017, the United States Army consisted of 475,000 soldiers, the Army National Guard (ARNG) 342,000, and the United States Army Reserve (USAR) 198,000, divided into 10 divisions and independent units.