CREATE TABLE table_204_343 (id NUMBER, "nation" CLOB, "model" CLOB, "length" CLOB, "barrel length" CLOB, "weight" CLOB)

what country has the least number of rifles in service ?
SELECT "nation" FROM table_204_343 GROUP BY "nation" ORDER BY COUNT(*) LIMIT 1
SELECT "nation" FROM "table_204_343" GROUP BY "nation" ORDER BY COUNT(*) FETCH FIRST 1 ROWS ONLY