pp, "The Military Cross (MC) is the third-level military decoration awarded to officers and (since 1993) other ranks of the British Armed Forces; and formerly also to officers of other Commonwealth countries.
The MC is granted in recognition of "an act or acts of exemplary gallantry during active operations against the enemy on land to all members, of any rank in Our Armed Forces…".
The award was created in 1914 for commissioned officers of the substantive rank of Captain or below and for Warrant Officers. In 1931 the award was extended to Majors and also to members of the Royal Air Force for actions on the ground."
https://www.forces-war-records.co.uk/medals/military-cross
pp, "... killing germans...". Killing the enemy happens in war.
Blame Hitler why don't you?