The countries who imposed them. i.e. Britain, Japan, France, US, etc.
By proclaiming neutrality and signing treaties with Britain and Spain :)
Every country has no extradition treaties with the.
U.S. and Great Britain
Never good, but sometimes unavoidable - as when Britain had to react to Hitler's flouting of international treaties.
Sovereign countries make treaties with other countries. The exact protocols will vary according to the legislation of the country.
Britain acquired other countries for its empire through a combination of exploration, conquest, colonization, and treaties. Explorers claimed lands for Britain, while military force was often used to subdue indigenous populations. The British established colonies for trade and resources, and treaties were sometimes signed to formalize control over territories. Economic interests, competition with other European powers, and the belief in the superiority of British culture further motivated expansion.
Ukraine
Congress can
Australia
Canada
Australia