Russia-Ukraine updates: Putin suspends key US-Russia nuclear treaty

President Vladimir Putin said he'd sought an "open dialogue" with the West.

Almost a year after Russian President Vladimir Putin launched a full-scale invasion of neighboring Ukraine, the two countries are engaged in a struggle for control of areas throughout the east and south.

Putin's forces pulled out of key positions in November, retreating from Kherson as Ukrainian troops led a counteroffensive targeting the southern port city. Russian drones have continued bombarding civilian targets throughout Ukraine, knocking out critical power infrastructure as winter sets in.

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Here's how the news is developing. All times Eastern.
Jan 25, 2023, 6:31 AM EST

Germany to deliver tanks to Ukraine, in major step for allies' support

German officials said on Wednesday they plan to deliver 14 Leopard 2 tanks to Ukraine.

“This decision follows our well-known line of supporting Ukraine to the best of our ability,” Chancellor Olaf Scholz said in a statement. “We are acting in a closely coordinated manner internationally.”

PHOTO: German Chancellor Olaf Scholz takes questions from parliamentarians as Defense Minister Boris Pistorius, left, listens, at a session of the Bundestag, Jan. 25, 2023, in Berlin.
German Chancellor Olaf Scholz takes questions from parliamentarians as Defense Minister Boris Pistorius, left, listens, at a session of the Bundestag, Jan. 25, 2023, in Berlin. Scholz acknowledged that Germany will provide Ukraine with Leopard main battle tanks.
Sean Gallup/Getty Images

Officials said the decision was the result of intensive consultations that took place with Germany's closest European and international partners. Other European allies also plan to send tanks, German officials said.

Ukrainian activists rally outside the German embassy to demand Germany to send Ukraine Leopard battle tanks in Tbilisi on Jan. 25, 2023.
Vano Shlamov/AFP via Getty Images

Ukrainian troops will be trained on the tanks in Germany, officials said in a statement. Germany also planned to send ammunition and provide system maintenance.

-ABC News' Joe Simonetti and Sarah Hucal

Jan 24, 2023, 2:53 PM EST

US considering sending Abrams tanks to Ukraine: Officials

The Biden administration is leaning toward sending M1A1 Abrams tanks to Ukraine, U.S. officials have confirmed to ABC News.

The U.S. could commit to sending between 30 to 50 tanks to Ukraine under the Ukraine Security Assistance Initiative.

A M1A2 Abrams battle tank of the US army that will be used for military exercises by the 2nd Armored Brigade Combat Team, is pictured at the Baltic Container Terminal in Gdynia, Dece. 03, 2022.
Mateusz Slodkowski/AFP via Getty Images, FILE

It could take more than a year for the new tanks to be fielded, officials said.

While President Joe Biden has not made a final decision, the transfer of Abrams would presumably enable Germany to authorize the transfer of German-made Leopard 2 tanks to Ukraine. This could then allow the 12 NATO countries that have Leopard 2 tanks to transfer them to Ukraine,.

Two Leopard 2A6 main battle tanks participate in the NATO Iron Wolf military exercises, Oct. 27, 2022, in Pabrade, Lithuania.
Sean Gallup/Getty Images

The decision could be announced as early as this week, officials said.

-ABC News' Luis Martinez, Shannon K. Crawford and Matt Seyler

Jan 23, 2023, 5:11 PM EST

Zelenskyy issues new rule barring officials from personal travel out of country

Ukrainian President Volodymyr Zelenskyy announced a new policy that forbids Ukrainian officials from leaving the country for non-governmental purposes.

"Officials will no longer be able to travel abroad for vacation or for any other non-governmental purpose," Zelesnkyy said in his evening address Monday. "Within five days, the Cabinet of Ministers is to develop a border-crossing procedure for officials so that only a real working trip can be the reason for border crossing."

-ABC News' Ellie Kaufman

Jan 21, 2023, 5:22 PM EST

Russian casualties in Ukraine above 100,000: US

The U.S. believes the number of Russians killed or injured fighting in Ukraine is well above 100,000, according to people familiar with the matter.

One source said the U.S. believes more than 150,000 Russians have been killed or wounded, and another source said the total number was approaching 200,000.

In this handout photo taken from video and released by Russian Defense Ministry Press Service on Jan. 13, 2023, Russian self-propelled 152.4 mm howitzers Msta fire on a mission at an undisclosed location in Ukraine.
Russian Defense Ministry Press Service via AP

In this handout photo taken from video and released by Russian Defense Ministry Press Service on Jan. 13, 2023, Russian soldiers prepare a mortar "Sani" to fire in the Ugledar direction at an undisclosed location in Ukraine.
Russian Defense Ministry Press Service via AP

The chairman of the Joint Chiefs of Staff, Gen. Mark Milley, said Friday that the Russian casualty number was "significantly well over 100,000." In November, Milley had said that "well over" 100,000 Russians had been killed or wounded.

That number includes Russians who have been killed in action, have died from wounds, or who were wounded and have been taken off the battlefield. The number of injured is believed to be higher than the number killed, one source said.

ABC News’ Luis Martinez, Ben Gittleson and Matt Gutman

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