US President Donald Trump has said that the topic of the war in Ukraine was only briefly touched upon during his recent conversation with Russian ruler Vladimir Putin, but that a fuller discussion is planned for next week.

Russian President Vladimir Putin called President Donald Trump to wish him a happy birthday and speak about the escalating conflict in the Middle East on Saturday. Putin spoke with Trump about the Russian president’s conversations with the leaders of Iran and Israel as tensions heat up.

The U.S. and Russian leaders held a call for the fifth time since Trump took office and sought to reset relations with Moscow, in a stark pivot from his predecessor.