NATO's Secretary-General Jens Stoltenberg announced that he invited Ukrainian President Volodymyr Zelenskyy to a NATO summit in Vilnius, Lithuania, on July 11 and 12.

Zelenskyy will meet with alliance member states, according to Stoltenberg.

-ABC News' William Gretsky

The U.S. is continuing to push for consular access for Evan Gershkovich, the Wall Street Journal reporter detained in Russia, White House press secretary Karine Jean-Pierre said during a briefing Tuesday, adding that "this is a priority" for President Joe Biden.

Asked how worrying it was the U.S. still didn't have consular access, Jean-Pierre said, "We're concerned."

"We're taking this very seriously," Jean-Pierre said, pointing to Secretary Antony Blinken’s conversation with Russian Foreign Minister Sergey Lavrov over the weekend. "We're working diligently, very hard to get a counselor to Evan.”

Jean-Pierre declined to say whether the U.S. was close to determining that Gershkovich was being "wrongfully detained" or provide a timeline of when that determination may happen, saying the State Department's process "is currently ongoing." That classification would allow the federal government to use more resources to try to free him.

-ABC News' Ben Gittleson

The Pentagon announced $2.6 billion in new security assistance for Ukraine on Tuesday.

The aid will come in two forms: a $500 million presidential drawdown authority package pulling from existing U.S. stockpiles (the 35th such package for Ukraine); and $2.1 billion from Ukraine Security Assistance Initiative funds to procure new equipment.

Both the PDA and USAI packages are largely focused on providing munitions for Ukraine, including additional Patriot air-defense missiles and HIMARS ammunition. They also include anti-drone weapons, vehicles, communications equipment, spare parts and more.

-ABC News' Matt Seyler

At least 501 children have been killed and almost 1,000 others injured since February 2022, Catherine Russell, executive director of UNICEF, tweeted Monday.

"Another tragic milestone for Ukraine's children and families," she wrote, adding: "This is just the UN verified number. The real figure is likely far higher, and the toll on families affected is unimaginable."

Ukrainian Defense Minister Oleksii Reznikov said Friday the military is "ready" to launch a counteroffensive against Russian forces.

"It's up to the general staff and the command," Reznikov said during a press briefing in Kyiv. "We will do it as soon as there is God's will, the weather and the commanders' decision."

Ukraine has received Patriot missile defense systems from the United States as well as Germany and the Netherlands. The Ukrainian military has been trained on how to use the systems and "mastered" them within weeks, according to Reznikov.

"The exact number of batteries, I'm sorry, I won't say," he added. "Let the enemy guess."

Meanwhile, Ukrainian Foreign Minister Dmytro Kuleba urged the world not to consider or call the anticipated counteroffensive "a decisive battle." Speaking at a press conference in Odesa on Friday, Kuleba said the decisive battle is the one that will lead to the liberation of all occupied Ukrainian territories.

-ABC News’ Will Gretsky