Israel has delivered a second Iron Dome defense system to the United States. The first was delivered in September (see here previously). Both were delivered on time. Defense Minister Benny Gantz said the system would help defend American soldiers against ballistic and air threats.

https://www.israelhayom.com/2021/01/03/israel-delivers-2nd-iron-dome-battery-to-us/

https://www.timesofisrael.com/israel-ships-2nd-of-two-iron-dome-batteries-to-us-hopes-to-sell-more/