U.S. President Joe Biden will announce an additional $800 million in security assistance to Ukraine on Wednesday, a White House official said.

The new military aid is expected to include more anti-tank and anti-aircraft systems, including portable air defense systems such as Javelins and Stingers, reported the Wall Street Journal.

The money would come from the roughly $13.6 billion assigned to Ukraine in the omnibus budget bill Biden signed, said the report. A U.S. official said Biden isn't expected to deploy more troops although the White House is mulling over sending more troops to Europe since the Russia-Ukraine crisis.

U.S. arms exports saw a substantial rise of 14 percent in the last five years (2017-2021) compared to five years earlier (2012-2016) while international transfers of major arms has dropped slightly by 4.6 percent, according to new data published by the Stockholm International Peace Research Institute (SIPRI) on Monday.

SIPRI is an independent international institute dedicated to research into conflict, armaments, arms control and disarmament.

The global share of U.S. arms exports has grown from 32 percent five years ago to 39 percent last year, according to the institute.

Arms exports by the U.S. in last five years have more than doubled compared to those of Russia, the second largest arms exporter, with a 108 percent increase.

The Middle East contributed to 43 percent of the U.S. arms transfers, a crucial increase for the U.S. export growth, especially when Saudi Arabia expanded its arms import from the U.S. with a 106 percent jump.

"The small decrease in global arms transfers masks large variations between regional trends," said Pieter D. Wezeman, senior researcher with the SIPRI Arms Transfers Program.

He said the increase or continuing high rates of weapon transfer in regional areas "contributed to worrying arms build-ups."