Russia should help Iran and Yemen countering western attacks, the more military expenditures and involvement, the less military help to ukraine.
This is specially good when delivering fast the Su35 and GPS jammers and other stuff that would help Yemen to keep more resources on Red Sea.
US is expeding a crazy money to counter cheap suicide drones. At least ESSMII it is extremely expensive and SMII or SMVI it is a CRAZY damn money.
Russia f*cked Yemen for 13 years by providing all sorts of equipment to Saudos and Emiratis such as RPG-32 and even proposing them S-400s
China did worse as Saudis source of arms comes first from USA seconded to China with MALE drones that served to bomb marriages
China and Russia have both a part of responsibility for the current state of Yemen, though more from China
So help Yemen how? Besides giving them satellite data, early warnings and where to strike i don't see anything else, Iran already provides them real time data, also this will expose Russia to even more sanctions that could be irreversible
Su-35 will serve to defend Iranzamin, if anyone thinks they will go to Iraq or Syria, they are delusional.
AnsarAllah already have weapons manufacture with equipment performing better than Russian ones such as BMs, ASBMs that surely works better than scuds/tochka
Yemen understood this since a long time, Russia understood this since the war in Ukraine, i don't think AnsarAllah need advices on asymmetrical warfare from Russia