In recent years, many nations have made claims of extended maritime jurisdiction or exclusive control for various purposes, and sometimes have claimed sovereignty over areas of sea far beyond the three-mile territorial sea traditionally claimed by many nations. A primary objective of many of these claims has been control over fishing in coastal waters, with the purpose of reserving for the exclusive use of fishermen of the coastal state the fish resources in the waters claimed, or of controlling the activities of foreign fishermen and possibly exacting fees for the privilege of continued fishing. The nature of most claims of authority to regulate the taking of fish in coastal waters is such as to exclude foreign fishermen, such claims having as their basic purpose unconditional right of exclusion. What rights exist for displaced fishermen exist as a matter of comity, i.e., friendship between friendly nations, and as such form no basis for claims of legal right to recompense (although the governments of fishermen who are expelled without a phase-out period may justifiably respond in like unfriendly manner, enacting restrictive tariffs or similar economic handicaps).