arm,
gird,
build up,
fortify prepare oneself for a military confrontation; "The U.S. is girding for a conflict in the Middle East"; "troops are building up on the Iraqi border"
disarm -
make less hostile; win over; "Her charm disarmed the prosecution lawyer completely"
convince,
win over,
convert change in nature, purpose, or function; undergo a chemical change; "The substance converts to an acid"
Disarm is a song by The Smashing Pumpkins. It was the third single and their sixth track from their second album, Siamese Dream. "Disarm" was written by Billy Corgan and is one of the band’s most highly regarded songs.