Ms. Zakharova's statement comes as European Union (EU) senior foreign policy representative Kaja Kallas welcomed US President Donald Trump's idea of continuing to supply US weapons to Ukraine but with funding paid by the EU.
Zakharova questioned whether Kallas was well aware of the situation, as Russian forces continuously gained many advantages on the battlefield. The Russian spokesman said that the additional weapons would only cause Ukraine to suffer further losses and lead to collapse.
Previously, on July 14, President Trump argued that selling weapons to Ukraine in EU money was a business opportunity for the US. This statement is said to have shifted much of the responsibility of supporting Ukraine to the EU.
Notably, after Mr. Trump's statement, Ms. Kallas did not object but also noted that the US should not "receive all the merits" of aid if it is not willing to share the financial burden with Europe.

The EU's stance was later criticized by Russian Foreign Minister Sergei Lavrov. On July 15, Mr. Lavrov said that the EU was putting "unsuitable pressure" on Mr. Trump to make him more pro-Ukrainian.
Foreign Minister Lavrov warned that escalating sanctions on Moscow - something Trump also threatened - would eventually hurt EU member states more than Russia.
Moscow has always maintained that no military aid from the West will force Russia to change its core goals in the conflict.
The Russian government has even repeatedly stressed that it will consider the request to stop arms supplies to Ukraine as one of the prerequisites for ending the conflict that has lasted for more than 3 years.
Meanwhile, the Kremlin described the EU's approach as an attempt to prolong the conflict "to the last Ukrainian" and to the detriment of Russia.