A US military official was quoted by AP as saying that the USA doesn't intend to use military force against the North in response to either a nuclear test or a missile launch.
Kim did not speak during the annual parade, which celebrates the 1912 birthday of his late grandfather Kim Il Sung, North Korea's founding ruler, but a top official warned that the North would stand up to any threat posed by the United States.
Earlier this year, North Korean Supreme Leader Kim Jong-un, who presided over Saturday's parade, warned that the country was in the process of finalizing the development of an ICBM that would be capable of reaching U.S. territory.
The North has said it has developed and would launch a missile that can strike the mainland United States but officials and experts believe it is some time away from mastering all the necessary technology.
The United States has sent an aircraft carrier to the waters off the Korean peninsula and is conducting its largest-ever joint military exercises with South Korea, the AP reported.
In a live broadcast, a newsreader from North Korea's state-run television service called the new military hardware the country's "modernized strategic missiles".
"However, North Korea has a habit of showing off new concepts in parades before they ever test or launch them", Hanham said.
The Associated Press cited unidentified USA officials saying that the focus of the new policy will be on increasing pressure on Pyongyang with the help of China, a strategy that Trump has long advocated.More news: United Kingdom prime minister defends decision to seek snap election
Pang Zhongying of the School of International Studies at Beijing's Renmin University agreed that military action was unlikely, but said another North Korean nuclear test would mark "the crossing of a red line" that China was prepared to respond to.
Other senior officials joining Kim at the podium included Kim Won Hong, who the South Korean government had said earlier this year was sacked from his job as state security minister, presumably over corruption.
Pyongyang has also expressed anger over the ongoing annual spring military exercises the US holds with South Korea, which it considers a rehearsal for invasion.
China's Global Times newspaper, which is published by the People's Daily, the Communist Party's official paper, said North Korea must have felt the shockwave from the 11-ton "mother of all bombs" dropped by US forces on Islamic State-linked fighters in Afghanistan on Thursday.
The pace of North Korea's development of nuclear weapons is of chief concern - they have certainly been ramping up the testing.
During his New Year's address, Kim said the country's preparations for an ICBM launch had "reached the final stage".
Impoverished North Korea and the rich, democratic South are technically still at war because their 1950-53 conflict ended in a truce, not a peace treaty.
Kim, a 30-something leader who took power in late 2011, emphasizes nuclear weapons as the foundation of his national defense strategy. A USA aircraft carrier, the USS Carl Vinson, is heading to waters off Korea in a show of force. North Korea regularly launches short-range missiles, but it is also developing mid-range and long-range missiles meant to target USA troops in Asia and, eventually, the US mainland. The country conducted two nuclear tests previous year.