Enemies are working together... sometimes better than friends working together.

Ukraine and Russian special forces for example doing special contracts together in Africa? Teaming up temporarily to secure resources? Probably everyone is at it.

"the Egypto-Ottoman fleet was decisively defeated by the combined fleets of the Britain, France and the Russian Empire, effectively securing the independence of Greece."

https://en.wikipedia.org/wiki/Hellenic_Navy

When it suits people they do war / business.

All business can be seen as a degree of war on the home people or abroad using currency of war, tax and money and shooting/bombing things/people.