UK forces have been in Afghanistan since US-led forces launched Operation Enduring Freedom in 2001, targeting al-Qaeda and its Taliban supporters.
5. Weak in intellect; destitute of ordinary strength of mind; foolish; witless; simple; as, a silly woman. 6. Proceeding from want of understanding or common judgment; characterized by weakness or folly; unwise; absurd; stupid; as, silly conduct; a silly question.
A gag is a joke. The definition of a gag is a prank or a joke, or something placed over a person's mouth to stop him from making noise, or a restriction that prevents free speech. A prank where you put a whoopie cushion on someone's chair is an example of a gag.