When was the location 15km NW of Pol-E Khomri, the circumstaances IED and the casualties of 1 WIA?
CREATE TABLE table_71248 (
    "Date" text,
    "Location" text,
    "Nature of incident" text,
    "Circumstances" text,
    "Casualties" text
)
SELECT "Date" FROM table_71248 WHERE "Casualties" = '1 wia' AND "Circumstances" = 'ied' AND "Location" = '15km nw of pol-e khomri'
Below are sql tables schemas paired with instruction that describes a task. Using valid SQLite, write a response that appropriately completes the request for the provided tables. ### Instruction: When was the location 15km NW of Pol-E Khomri, the circumstaances IED and the casualties of 1 WIA? ### Input: CREATE TABLE table_71248 (
    "Date" text,
    "Location" text,
    "Nature of incident" text,
    "Circumstances" text,
    "Casualties" text
) ### Response: SELECT "Date" FROM table_71248 WHERE "Casualties" = '1 wia' AND "Circumstances" = 'ied' AND "Location" = '15km nw of pol-e khomri'