SQL, UNION and correct ORDER

Just had to combine two tables month column and sort the whole thing. I had two tables like

and

and I wanted (put the two tables‘ month in one column and remove duplicates):

The solution was not too complicated, but I thought I share it.

SELECT MONTH FROM table1
UNION
SELECT MONTH FROM table2 ORDER BY MONTH DESC

No need to add a GROUP BY because of the UNION, and the seconds query ORDER BY sorts the complete result.