Alarm about North Korea has spiked. Earlier this month, the North claimed to have successfully test-launched an intercontinental ballistic missile that could hit Alaska. Some experts estimate that North Korea is now 18 to 36 months away from launching a missile able to reach Los Angeles.

President Trump has warned that a "major, major conflict" with North Korea is possible. His closest advisers have said that "the era of strategic patience is over".

So, in this week's Inquiry, we take a look at the two sides' war plans and ask: what would war with North Korea look like?

Producer: Sarah Shebbeare

(image: A combined fire demonstration of the North Korean People's Army celebrating their 85th anniversary on 26 April 2017. Credit: STR/AFP/Getty Images)