Many factors, heres some.
When money leaves the country is always the worst for inflation.
Money leaving the country for foreign government pockets, isreal, Ukraine,
The money never comes back into US circulation or used back on us soil.
War creates inflation for we the people as we pay for it and makes the warmongers rich on the peoples dime and the dead soldiers killed in war.
immigrants create inflation, because they send the money out of the nation back to where they came from.
Governemtn handouts - At least when the socialist US government gives them money so people can stay home and not go to work, the money is being recirculated back into the local economies cause they buy a mountain dew, some cheetos or pot.