The ceasefire announcement followed two important developments. On 18 April, US Secretary of State Marco Rubio claimed that President Donald Trump was growing impatient and was likely to abandon peace efforts within days if there was no progress. Trump then made a rare rebuke of Putin on social media, writing “Vladimir, STOP!” after a Russian air attack on Kyiv on 24 April killed 12 people and injured more than 80 others.
A temporary ceasefire allows Putin to do just enough to keep Trump thinking he is committed to a peace deal, hoping this will lead to eventual sanctions relief. But it also has clear benefits for Russia on the battlefield. Many aggressors use ceasefires to regroup, rearm and improve their positioning. Analysts have warned that Russia will use the pause to reorganise in order to pursue larger territorial ambitions, particularly in southern and eastern Ukraine.