CREATE TABLE table_204_313 (id DECIMAL, "date" TEXT, "operation" TEXT, "location" TEXT, "type" TEXT, "information" TEXT)

which was the longest nato operation in terms of time ?
SELECT "operation" FROM table_204_313 ORDER BY JULIANDAY("date") - JULIANDAY("date") DESC LIMIT 1
SELECT "operation" FROM "table_204_313" ORDER BY JULIANDAY("date") - JULIANDAY("date") DESC NULLS LAST LIMIT 1