Everything every country has done in the last 500 years has caused long-term damage to itself, it's working class people and to any other country it has been involved with.
Wars, pollution, poverty, disease, deaths, long-term repression, environmental damage, economic damage, exploitation of natural resources (of all kinds).
Most Western countries have also paid hundreds of billions support many of the other countries exploited by them or in difficult circumstances- it's called Overseas Aid. The EU pays billions additionally every year suppirted poorer EU countries. Eurpean countries and the US paid to re-build Europe after both World Wars, as we do after every terrible war event- as we will in Gaza when this war ends. We have already paid billions to Commonwealth countries to support them in many different ways.
Much of that money has been wasted by some countries, siphoned off into bribes and arms and not used to help people, build infrastructure.
You sound very uninformed.