This is Keith Chatto's cover to Page Publications' War in the Air #1:
The cover art is based on MV Features' Action War Picture Library #16:
Sons of Bushido was subsequently reprinted in the following Page Publications issues:
Wartime Library #6
Air Combat Library #2
The covers to Air Combat Library #3 and War in the Air #3 appear to be loosely based on the splash page to Sons of Bushido:
I daresay there are more such Page Publications reprintings of this story to be unearthed.