"We have not seen any signs that Belarusian troops or forces have moved inside Ukraine," Kirby said.
At the same time, according to him, the fact that there are no signs of invasion of Belarusian forces on Ukrainian territory, does not mean that this will not happen in the future.
According to the General Staff of the Armed Forces of Ukraine, on March 11, Russian troops bombed the territory near the border between Belarus and Russia.
No one was injured in the explosions in Belarus.
The Ukrainian military called it an "insidious provocation" aimed at involving the Belarusian armed forces in the war against Ukraine on Russia's side.
Later, the Ukrainian police opened criminal cases on the fact of air strikes in the Rivne region.
They took place at a time when a number of media outlets reported possible air strikes on villages in the Stolin region.
According to the police, three explosions took place at 3.40 pm Minsk time in a field near the village of Milach, Sarny district, Rivne region.
No one was injured in the bombing, but the power line was damaged.
The Minister of Defense of Ukraine Alexei Reznikov said earlier that Ukraine "did not plan, does not plan and will not plan any aggressive action against Belarus."
On March 11, Alexander Lukashenko held talks with Vladimir Putin in Moscow.
According to the state news agency BelTA, they agreed to supply Belarus with "the most modern models of military equipment" from Russia.
Russia's war against Ukraine
At 5 am on February 24, Russian President Vladimir Putin announced the start of a military operation against Ukraine in the Donbas at the request of the DNR and LNR groups.
He said Russia did not plan to occupy Ukrainian lands, and called on the Ukrainian military to lay down its arms and "go home."
Russia began shelling the entire territory of Ukraine.
On the first day, the Russians captured the island of Snake, where they captured 13 Ukrainian border guards.
All days of the war continue shelling of Kiev from missiles and air strikes.
Russia has attacked Kharkiv, Sumy, Chernihiv and others, but in more than 12 days of active hostilities has managed to partially take control of only Kherson and Mariupol, where acts of violence and looting are taking place.
Before the war, Russian authorities held talks with the United States and NATO on security guarantees in Europe.
According to Russia's demands, the United States should not establish military bases on the territory of the former Soviet Union, which is not a member of NATO, and the alliance should stop expanding to the east.
In particular, Russia has demanded not to admit Ukraine to NATO.
Western countries have categorically denied the Russians on all counts.
On February 10, Belarusian-Russian maneuvers began near the Ukrainian border, which ended with Russian troops remaining in Belarus, contrary to Moscow's earlier promises.
On February 21, during a televised address to the Russians, Putin called the so-called "DPR" and "LPR" independent states within the regions.
On February 22, the Federation Council ratified the decision.
The United States, Canada, Britain and other countries have sent weapons to Ukraine.
Germany, which had previously defended the Nord Stream-2 gas pipeline project, allowed arms supplies only on February 26, the third day of the war.
U.S. Secretary of State Anthony Blinken said his country has already spent more than $ 1 billion on military aid to Ukraine.
On February 26, European states reached a consensus and decided to disconnect Russia from SWIFT.
The Russians are hiding their statistics on the victims, and have sent instructions to schools calling the events not a war but a peacekeeping operation.
Raskomnadzor began to demand from journalists to name the events in Ukraine.
On February 27, the illegitimate leader of Belarus, Alexander Lukashenko, admitted that rockets had been launched from the territory of Ukraine.
On the same day, in a telephone conversation with Vladimir Zelensky, Lukashenko promised that there would be no attacks from Belarusian territory, but after it, missiles flew from Belarus to Ukraine again.
On February 27, the International Legion of Territorial Defense was established in Ukraine, and foreign volunteers were encouraged to join.
Belarusians, in particular the White Legion, also joined it.
Three rounds of Russian-Ukrainian talks have yielded almost no concrete results.
Attempts to reach an agreement at the Foreign Ministry level were also in vain.
The International Criminal Court in The Hague has launched an investigation into Ukraine's lawsuit against Russia.
The group left the court for Ukraine for investigation.
The Ministry of Defense of Ukraine stated that during the two weeks of the war the losses of Russians exceeded 12 thousand people.
For three days in a row, the Russian side has disrupted humanitarian corridors for residents of Mariupol, Volnovakha and Sumy.
The corridor was also promised on March 6 in Irpen, but Russian troops opened fire on civilians.
The number of refugees from Ukraine has reached 2 million.
The rate is well above the period of the war in Bosnia in the 1990s.
Kharkiv has already lost almost a third of its pre-war population.
On the morning of March 8, Sumy was bombed.
The Russian air strike killed 21 people, including two children.
On March 9, Russians dropped bombs on a children's hospital in Mariupol, killing three people and injuring 17 others.
Russia has started using banned "vacuum" bombs against Ukraine.
Independent verification of information about hostilities provided by officials of various parties is not yet possible.