Critical step for president in convincing foreign leaders he remains up to task of leading 32-member military alliance

Joe Biden has announced that Nato countries will provide Ukraine with five new strategic air defense systems as leaders began a summit in Washington where the alliance was expected to declare Ukraine’s path toward Nato to be “irreversible”.

The promise of weapons deliveries, including anti-air defenses sought after by Ukrainian president Volodymyr Zelenskiy, came just a day after a deadly missile strike against a pediatric cancer hospital and other civilian targets in Ukraine that Biden called a “horrific reminder of Russia’s brutality”.

Netanyahu sends intelligence chief to Qatar to study Hamas proposal, while Hezbollah says it would also stop attacks if hostilities paused

Hopes for a ceasefire in Gaza and de-escalation on the boundary between Israel and Lebanon were raised on Friday, as Israel’s intelligence chief was dispatched by the prime minister, Benjamin Netanyahu, to Qatar to resume stalled negotiations as Hamas reportedly told its Lebanese ally Hezbollah it had accepted a ceasefire proposal.

An official for the Lebanese group, which said on Thursday that it had fired 200 rockets into Israel in retaliation for a strike that killed one of its top commanders, also told Reuters that the group would cease fire as soon as any Gaza ceasefire agreement takes effect, echoing previous statements.

White House says proposal is in line with deal outlined by Joe Biden in late May, but work is still to be done

The White House has described the latest Hamas ceasefire proposal for Gaza as a “breakthrough” establishing a framework for a possible hostage deal, but warned that difficult negotiations remained over the implementation of the agreement.

A senior US official said the Biden administration received the latest Hamas offer “a couple of days ago” and had been studying it ahead of a 30-minute telephone call between Joe Biden and Benjamin Netanyahu on Thursday.

Harrison Mann, military expert who quit over Gaza, says ruinous war in Lebanon would pull US into regional conflict

Israel risks going to war against Hezbollah to ensure Benjamin Netanyahu’s political survival, but it would be a miscalculation that could lead to mass civilian deaths in both Lebanon and Israel, a former US military intelligence analyst has warned.

Harrison Mann, a major in the Defence Intelligence Agency who left the military last month over US support for Israel’s war in Gaza, also told the Guardian that such a disastrous new war would pull the US into a regional conflict.