U.S. Marine soldiers from 31st Marine Expeditionary Unit, Battalion landing team deployed from Okinawa, Japan, participate in the U.S. and South Korean Marines joint landing operation at Pohang seashore on March 29, 2012 in Pohang, South Korea.

South Korean officials signed a short-term agreement on Sunday that would boost the amount Seoul contributes toward the upkeep of U.S. troops on the peninsula, after a previous deal lapsed amid U.S. President Donald Trump's call for more money.

The new deal must still be approved by South Korea's parliament, but it would boost South Korea's contribution to 1.03 trillion won ($890 million) from 960 billion won in 2018.

Unlike past agreements, which lasted for five years, this deal is scheduled to expire in one year, potentially forcing both sides back to the bargaining table within months.