CREATE TABLE table_46544 ("Name" TEXT, "Date" TEXT, "Defending forces" TEXT, "Brigade" TEXT, "Population" TEXT)

What is the defending forces when Al-Murassas shows for name?
SELECT "Defending forces" FROM table_46544 WHERE "Name" = 'al-murassas'
SELECT "Defending forces" FROM "table_46544" WHERE "Name" = 'al-murassas'