How to show specific 2 rows at the top without order and then sort the rest by order using SQL DISTINCT, UNION - sql-server

Question

I have a country table with Id, Name with duplicate records. I am Using DISTINCT and UNION to show particular 2 country names Ireland and England at the top and rest all after By order name like below in SQL server
create table country (id int , name varchar(50));
insert into country (id, name) values( 1, 'Kuwait');
insert into country (id, name) values( 2, 'Australia');
insert into country (id, name) values( 3, 'Canada');
insert into country (id, name) values( 4, 'spain');
insert into country (id, name) values( 5, 'Turkey');
insert into country (id, name) values( 6, 'Ireland');
insert into country (id, name) values( 7, 'England');
insert into country (id, name) values( 1, 'Kuwait');
insert into country (id, name) values( 2, 'Australia');
insert into country (id, name) values( 3, 'Canada');
insert into country (id, name) values( 4, 'spain');
insert into country (id, name) values( 5, 'Turkey');
insert into country (id, name) values( 6, 'Ireland');
insert into country (id, name) values( 7, 'England');
DESIRED OUTPUT:
id name
-----------
6 Ireland
7 England
2 Australia
3 Canada
1 Kuwait
4 Spain
5 Turkey
Tried with DISTINCT & UNION in SQL QUERY:but names are not ordered after 3 row
select distinct id,name from country where id in (6,7)
union
select distinct id,name from country where id not in (6,7)
id name
-----------
6 Ireland
7 England
1 Kuwait
2 Australia
3 Canada
4 Spain
5 Turkey `
also tried with ORDER BY CASE:
select distinct id,name from country where id in (6,7)
union
select distinct id,name from country where id not in (6,7)
ORDER BY CASE
WHEN id = 6 and id = 7 -- whatever identifies that row
THEN 1 ELSE 2 END
ERROR:ORDER BY items must appear in the select list if the statement contains a UNION, INTERSECT or EXCEPT operator.

Answer 1

There is absolutely no guaranteed order of the returned result, unless order by is specified. Even if you find a query, that returned the rows in the desired order, on next run, tomorrow, or at client's site, it will not return them in the same order. So you must add an order by clause. You need to sort on some artificial values, like this:
declare #country table(id int , name varchar(50));
insert into #country (id, name) values( 1, 'Kuwait');
insert into #country (id, name) values( 2, 'Australia');
insert into #country (id, name) values( 3, 'Canada');
insert into #country (id, name) values( 4, 'spain');
insert into #country (id, name) values( 5, 'Turkey');
insert into #country (id, name) values( 6, 'Ireland');
insert into #country (id, name) values( 7, 'England');
insert into #country (id, name) values( 1, 'Kuwait');
insert into #country (id, name) values( 2, 'Australia');
insert into #country (id, name) values( 3, 'Canada');
insert into #country (id, name) values( 4, 'spain');
insert into #country (id, name) values( 5, 'Turkey');
insert into #country (id, name) values( 6, 'Ireland');
insert into #country (id, name) values( 7, 'England');
select id, name from (
select distinct id, name
from #country) t
order by case name when 'Ireland' then 'aaaaaaaaaaaaaaaaaaaaaaaa1' when 'England' then 'aaaaaaaaaaaaaaaaaaaaaaaa2' else name end