Ranks of Gurkha soldiers standing in lines with their traditional Kukri knives attached to scabbards on their belts and their rifles at their sides, Hong Kong

A left over artillery battery from the Falklands conflict on the outskirts of Port Stanley, Falkland Islands.

Adult Arctic Skua (Stercorarius parasiticus) attacking a black-legged kittiwake to force it to drop food in the Svalbard Archipelago

Adult Arctic Skua (Stercorarius parasiticus) attacking a black-legged kittiwake to force it to drop food in the Svalbard Archipelago

Fire extinction, firefighting aircraft Canadair CL 415, French Sécurité Civile, dropping seawater, large-scale forest fire in Castellar, Maritime Alps

Fire extinction, firefighting aircraft Canadair CL 415, French Sécurité Civile, dropping seawater, large-scale forest fire in Castellar, Maritime Alps

Fire extinction with firefighting aircraft Dash 8 Q400 MR, French Sécurité Civile, large-scale forest fire in Castellar, Maritime Alps, Provence-Alpes-Côte d'Azur, France, Europe

Fire extinction, firefighting aircraft Dash 8 Q400 MR, French Sécurité Civile, dropping extinguishing agent, large-scale forest fire in Castellar, Maritime Alps, Provence-Alpes-Côte d'Azur, France, Europe

Roman amphitheater of Pula, Istria, Croatia

F-16 Fighting Falcon under full thrust on take off, military aircraft

Springbok (Antidorcas marsupialis). Fighting males. Kalahari Desert, Kgalagadi Transfrontier Park, South Africa.

Cattle (Bos taurus) bull fighting in a snow covered meadow, England

Red deer (Cervus elaphus) stag fighting, England