攻無不克，戰無不勝 [－无－－－战无－胜]

Jyutping gung1 mou4 bat1 hak1 , zin3 mou4 bat1 sing3
Pinyin gōng wú bù kè , zhàn wú bù shèng

Definitions (CC-CEDICT)
  1. to triumph in every battle and win every fight (idiom); all-conquering
  2. ever victorious
  3. nothing they can't do