His words are quoted by RIA Novosti.
“The purchase and delivery of these HIMARS MLRS and related ammunition will take several years,” he said.
The Pentagon spokesman said that the supply of other types of weapons is designed for a period of six to 24 months.
Earlier, White House press secretary Karine Jean-Pierre confirmed that the United States is providing Kyiv with a new $1.1 billion military aid package, including 18 HIMARS MLRS.
The aid package also includes hundreds of armored vehicles, radar and anti-drone capabilities, she said.