US President Donald Trump on Tuesday repeated his claim that he played a role in resolving global conflicts, saying he would "make a phone call" to stop the renewed fighting between Thailand and Cambodia. The conflict, which has entered its third day, is drawing international attention.

"I hate to say this one, named Cambodia-Thailand, and it started up today and tomorrow I am going to have to make a phone call. Who else could say I'm going to make a phone call and stop a war between two very powerful countries, Thailand and Cambodia," Trump said, as cited by Reuters.

Speaking at a rally in Pennsylvania, Trump spoke about several conflicts that he claimed to have resolved, including tensions between Pakistan and India and between Israel and Iran, before referring to the fresh clashes in Southeast Asia.

In July, Trump used ongoing trade negotiations to help secure a temporary ceasefire. However, Thai Foreign Minister Sihasak Phuangketkeow said he did not believe that the threat of tariffs should be used to push Thailand into talks, as cited by Reuters.

The truce between Thailand and Cambodia was reached in July as an emergency step after five days of cross-border clashes killed at least 43 people and forced more than 300,000 civilians to leave their homes.

As tensions rose again, Trump called both leaders and warned that tariff talks with Washington would be frozen unless the violence ended. Malaysia played a role in facilitating the discussions, with China also offering diplomatic support.

By late October, the ceasefire was formally extended in a carefully organised ceremony at the ASEAN summit in Kuala Lumpur, where Trump oversaw both governments signing a joint declaration.

This week’s fighting is the deadliest since the five-day clashes in July, with both sides accusing the other of starting the new round of violence. On Tuesday, the conflict spread to five provinces across Thailand and Cambodia, as cited by AFP.

More than 500,000 people have been displaced in Thailand and Cambodia since the border conflict restarted. The two neighbours have a long-standing dispute over the colonial-era demarcation along their 800-kilometre frontier, where competing claims over historic temples have repeatedly led to armed clashes.