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North Korea and South Korea both held military drills on Tuesday

Artillery drills are a reminder of Seoul's vulnerability if North Korea attacked, analyst says

CNN  — 

North Korea has staged its largest ever military drill to mark the founding of the country’s army, amid rising tensions with the West.

A statement from the South Korean military said the live-fire exercises were in the Wonsan region in the east of the country Tuesday afternoon, but gave no details on what kinds of weapons and military units took part in the drill.

On Wednesday, CNN was told by a North Korean government official with knowledge of the event that it was the largest ever drill conducted by the country’s military and involved 300 artillery guns.

North Korean leader Kim Jong Un gave the order to start the demonstration, where the large-caliber self-propelled guns lined up along the coast opened fire, state news agency KCNA reported Wednesday.