# The Arms Imports (SIPRI Trend Indicator Values)
The **Arms Imports (SIPRI Trend Indicator Values)** is an **indicator** developed by the **Stockholm International Peace Research Institute (SIPRI)** to measure the volume of international arms imports. It includes purchases, aid, and transfers through manufacturing licenses for **major conventional weapons** such as:
- **Aircraft**
- **Armored vehicles**
- **Artillery**
- **Radar systems**
- **Missiles**
- **Military-use ships**
This **indicator excludes** the following:
- **Small arms**
- **Light weapons**
- **Trucks**
- **Small artillery**
- **Ammunition**
- **Support equipment**
- **Technology transfers**
- **Services**
Values are expressed in **SIPRI Trend Indicator Values (TIVs)** in **US dollars (US$ million)**, with a **'0'** indicating that the value of imports is less than **US$0.5 million**.
The chart displays the values of arms imports for the **United States** in **US dollars (US$ million)** over a 23-year period, from **2000 to 2022**.