Ukraine's President Volodymyr Zelenskiy called on allies on Sunday to honour all promises to supply Ukraine with weapons, including those to counter Russian air attacks.
Zelenskiy said that over the past week Russian forces had launched hundreds of strikes on Ukraine and nearly 700 aerial bombs and over 600 attack drones were used.
Ukrainian air defences downed 60 out of 94 drones launched by Russia overnight, the air force said on Sunday. It said that 34 drones were "lost", in reference to Ukraine's use of electronic warfare to redirect Russian drones.
"Every week, the Russian war continues only because the Russian army retains its ability to terrorise Ukraine and exploit its superiority in the sky," Zelenskiy said on the Telegram messaging app.
He called on Ukraine's allies to fulfil agreements already made.
"The decisions made at the NATO summit in Washington, as well as those adopted during the Ramstein meetings regarding air defences for Ukraine, have still not been fully implemented," Zelenskiy said.
Ukraine's leader this week said he had discussed with partners and the United States the possibility of granting Ukraine licenses to produce air defence systems and missiles.
G7 leaders said on Wednesday they stand united to support Ukraine, including its territorial integrity, and agreed to increase sanctions on Russia, in a statement that underscores Kyiv's growing leverage as it seeks peace talks with Moscow.
US President Donald Trump maintained on Tuesday that an interim accord with Iran makes clear that Tehran would never be allowed to develop a nuclear weapon, and he also suggested Syria could be better positioned to disarm Hezbollah.
Messaging app Telegram has filed a petition in court challenging an Indian government order that has temporarily blocked use of the platform in an effort to prevent exam fraud, legal website Bar and Bench reported on Wednesday.
Russian attacks on cities in Ukraine's east and southeast have killed four people and set ablaze a residence and a shopping centre, officials and prosecutors said late on Tuesday.
US President Donald Trump has issued a rare public rebuke of Israel's military tactics in Lebanon targeting Hezbollah on Tuesday, saying it was unnecessary to bomb entire apartment buildings to hunt fighters.