Below is an context that describes a sql query, paired with an question that provides further information. Write an answer that appropriately completes the request.  # noqa: E501
### Context:
CREATE TABLE table_name_4 (tonnage VARCHAR, date VARCHAR)
### Question:
What is the total number of Tonnage, when Date is "25 June 1943"?
### Answer:
SELECT COUNT(tonnage) FROM table_name_4 WHERE date = "25 june 1943"