Russian President Vladimir Putin is stalling over a ceasefire. Meanwhile, Trump has changed his mind about sending weapons to Ukraine.

On Monday, Trump said that Russia's failure to reach a negotiated settlement with Ukraine within 50 days would lead to his administration imposing a 100% tariff rate on Russian imports as well as what he called "secondary tariffs" on countries that have continued to do business with Moscow.

The Kremlin said on Monday that it did not rule out the possibility of a meeting between Vladimir Putin and Donald Trump if the Russian and U.S. presidents were both in Beijing at the same time in September.

The parade will come at a key moment for the Ukraine war—just a day after Trump's 50-day deadline for Putin to make peace or face much tougher economic sanctions. Dmitry Peskov, Putin's spokesman, said at a press briefing on Monday that the Trump meeting could take place in Beijing in September,