Although Trump may have accepted the basic premise that Russia is winning and will eventually win its war with Ukraine, that doesn’t mean peace is at hand. From John Helmer at johnhelmer.net:

After the Victory Day celebration later this week, President Vladimir Putin has agreed to hold a summit meeting with President Donald Trump. “The Americans have repeatedly asked for a summit and the Kremlin has finally decided,” according to a reliable Moscow source, “that there is no need to spurn the extended hand.”
The source believes Abu Dhabi, in the United Arab Emirates (UAE), is the likely location. Preparatory discussions were held last week in Moscow when Putin telephoned the UAE President, Sheikh Mohammed bin Zayed Al Nahyan. The Kremlin communiqué claimed “the current state of Russia-UAE relations…constitute a strategic partnership and…enables ongoing dialogue even on the most sensitive international issues.” That was on May 1. The next day Putin met with Saif bin Zayed Al Nahyan, one of the President’s sons and his personal security chief, titled deputy prime minister.
The Moscow source says “the messages have been sent that it will not be a conclusive deal, only a meeting. This is a climb-down from the previous, public Russian position that a lot of work needs to be done first, before a presidential summit, by specialists. The Russians have understood there are no specialists on the US side yet, and the opportunity is right to shake hands first, then work out the details later.”
The White House press spokesman has announced Trump “will travel to Saudi Arabia, Qatar and the United Arab Emirates [in this order] from May 13th, until May 16th.”
“It’s a display of the Russian hand of friendship and mutual security,” the Moscow source adds. “The Americans are offering nothing concrete but we believe Trump is disposed to giving Russia the security steps it needs.”
The source says the Kremlin is “neither surprised nor disappointed” at Trump’s May 1 tweet declaring that “many of our allies and friends are celebrating May 8th as Victory Day, but we did more than any other Country, by far, in producing a victorious result on World War II.” “It shows you how foolish the Kremlin faction was which has advocated inviting Trump to Red Square for May 9. Putin will give Trump his PR opportunity – but in the sand, not in Red Square.”