(Reuters) -GE Aerospace said on Friday it had secured a contract from the U.S. Air Force valued up to $5 billion.

The contract supports the U.S. government’s foreign military sales program for F110-GE-129 engines, which power F-15 and F-16 fighter aircraft, the company said.

Under an indefinite delivery/indefinite quantity (IDIQ) contract, GE will deliver an unspecified number of F110 engines over a fixed period.

Earlier this month, the aerospace giant said it would invest nearly $1 billion in its U.S. factories and supply chain in 2025, in an effort to bolster its manufacturing process and enhance the implementation of new technologies and components.