The Pakistan army, during the recent conflict from May 7 to 10, fired a 155 mm artillery shell with a plug instead of a fuse, a defence spokesperson said.

“A 155mm unexploded ordinance was reported in Mendhar sector. Indian Army’s bomb disposal team reached to destroy it, only to find the artillery shell was with a plug instead of a fuse. Fitting a fuse on an artillery shell is the most basic training imparted to gunners worldwide,” the spokesperson added.
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This is an apt example of the shallow training standards of the Pakistan artillery and the false claims they make on world forums, he added.
A plug is a cap that seals the fuse and is often used for storage. Fuse is mandatory for detonation.