US President Joe Biden announced Thursday a new package of $800 million in military aid for Ukraine.
Biden said the newest round of US support will include heavy artillery, dozens of howitzers, 144,000 rounds of ammunition for them, and tactical drones.
Biden also announced that Russia-affiliated ships would be banned from US ports, and that the US Treasury was putting up a fresh $500 million for Ukraine's government so it can pay salaries and pensions and provide services.
"We have the capacity to do this for a long time. The question is, are we going to maintain the support of the international community to keep the pressure on Putin" and keep enforcing tough sanctions on Russia, he said.
"The most important thing is maintain unity," he said.