Do Catholics believe that God is actively "fighting" Satan? Do Catholics believe that God is actively "fighting" Satan? Or do they believe that Satan is a "tempter" who only tries to corrupt humans?

I vaguely recall stories from the Old Testament when God fought Satan directly, but I wasn't sure if Catholics believed that God was still actively fighting Satan.
God through Jesus Christ or God-made-man Jesus Christ is the devil's conqueror


  CCC 539 The evangelists indicate the salvific meaning of this
  mysterious event: Jesus is the new Adam who remained faithful just
  where the first Adam had given in to temptation. Jesus fulfills
  Israel's vocation perfectly: in contrast to those who had once
  provoked God during forty years in the desert, Christ reveals himself
  as God's Servant, totally obedient to the divine will. In this, Jesus
  is the devil's conqueror: he "binds the strong man" to take back his
  plunder.1 Jesus' victory over the tempter in the desert
  anticipates victory at the Passion, the supreme act of obedience of
  his filial love for the Father.
  
  1. Cf. Ps 95:10; Mk 3:27


The LORD achieves his definitive victory when he come again. Until then, the war and its battles continue


  CCC 2853 Victory over the "prince of this world"2 was won
  once for all at the Hour when Jesus freely gave himself up to death to
  give us his life. This is the judgment of this world, and the prince
  of this world is "cast out."3 "He pursued the
  woman"4 but had no hold on her: the new Eve, "full of
  grace" of the Holy Spirit, is preserved from sin and the corruption of
  death (the Immaculate Conception and the Assumption of the Most Holy
  Mother of God, Mary, ever virgin). "Then the dragon was angry with the
  woman, and went off to make war on the rest of her
  offspring."5 Therefore the Spirit and the Church pray:
  "Come, Lord Jesus,"6 since his coming will deliver us from
  the Evil One.
  
  2. Jn 14:30.
  3. Jn 12:31; Rev 12:10.
  4. Rev 12:13-16.
  5. Rev 12:17.
  6. Rev 22:17,20.     


Please see also CCC 677.