The F-35s from the three nations played as primary friendly, or blue, force players in this exercise while a variety of other aircraft played the aggressor roles, simulating realistic combat situations between the advanced F-35s and previous generation fighters.
Wargames: This Amazing Picture Shows F-35s Doing Something Only F-35s Can Do
Taken on Jun. 25, 2019 although not easy to see because of the standard F-35 color scheme the interesting picture in this post shows F-35 Lightning II fighter aircraft from three nations (U.S., U.K. and Israel) from three nations demonstrating interoperability during Exercise Tri-Lightning over the Eastern Mediterranean Sea.
Tri-Lightning was a one-day defensive counter air exercise involving friendly and adversary aircraft from the three participating countries and consisted of active and passive air defense operations.
As explained Lt. Col. Christine D. Millette, U.S. Air Forces Central Command Public Affairs, in the article Three-nation F-35 exercise demonstrates air power interoperability, this exercise is a demonstration of the interoperability between the U.S., U.K., and Israel using the F-35A, F-35B, and F-35I respectively.