Citation Hunt

The Wikipedia snippet below is not backed by a reliable source. Can you find one?

Click I got this! to go to Wikipedia and fix the snippet, or Next! to see another one. Good luck!

In page Northrop Grumman RQ-4 Global Hawk:

"

In 2009, NATO announced that it expected to have a fleet of up to eight Global Hawks by 2012 to be equipped with MP-RTIP radar systems. NATO had budgeted US$1.4 billion (€1 billion) for the project, and a letter of intent was signed.[1] NATO signed a contract for five Block 40 Global Hawks in May 2012.[2] 12 NATO members are participating in the purchase. On 10 January 2014, Estonia revealed it wanted to participate in NATO Global Hawk usage.[citation needed] In July 2017, the USAF assigned the Mission Designation Series (MDS) of RQ-4D to the NATO AGS air vehicle.[3]