----- Serbia
	 ----|
		 ----- Serbia and Montenegro
 ----|
		 ----- Belarus
	 ----|
				 ----- Armenia
			 ----|
				 ----- Azerbaijan
		 ----|
				 ----- Bulgaria
			 ----|
							 ----- Greece
						 ----|
							 ----- Turkey
					 ----|
											 ----- Estonia
										 ----|
											 ----- Norway
									 ----|
											 ----- Denmark
										 ----|
											 ----- Finland
								 ----|
										 ----- Latvia
									 ----|
											 ----- Iceland
										 ----|
											 ----- Sweden
							 ----|
									 ----- Croatia
								 ----|
										 ----- Finland
									 ----|
											 ----- Romania
										 ----|
													 ----- Macedonia
												 ----|
														 ----- Slovakia
													 ----|
														 ----- Slovenia
											 ----|
													 ----- Hungary
												 ----|
															 ----- Spain
														 ----|
																 ----- Israel
															 ----|
																 ----- Portugal
													 ----|
															 ----- Cyprus
														 ----|
																 ----- Netherlands
															 ----|
																		 ----- Ireland
																	 ----|
																			 ----- Lithuania
																		 ----|
																				 ----- United Kingdom
																			 ----|
																					 ----- Poland
																				 ----|
																						 ----- France
																					 ----|
																						 ----- Switzerland
																 ----|
																		 ----- Malta
																	 ----|
																			 ----- Belgium
																		 ----|
																				 ----- Austria
																			 ----|
																				 ----- Germany
						 ----|
								 ----- Albania
							 ----|
								 ----- Bosnia and Herzegovina
				 ----|
						 ----- Moldova
					 ----|
							 ----- Ukraine
						 ----|
								 ----- Georgia
							 ----|
								 ----- Russia