diff --git a/internal/controller/battle_test.go b/internal/controller/battle_test.go
index 9134a29..7fc72c1 100644
--- a/internal/controller/battle_test.go
+++ b/internal/controller/battle_test.go
@@ -140,21 +140,10 @@ func TestProduceBattles(t *testing.T) {
 	assert.NoError(t, g.UpdateRelation(race_C_name, race_D_name, game.RelationWar))
 	assert.NoError(t, g.UpdateRelation(race_D_name, race_C_name, game.RelationWar))
 
-	rel, err := g.Relation(Race_0.Name, race_C_name)
-	assert.NoError(t, err)
-	assert.Equal(t, game.RelationPeace, rel)
-
-	rel, err = g.Relation(Race_1.Name, race_C_name)
-	assert.NoError(t, err)
-	assert.Equal(t, game.RelationPeace, rel)
-
-	rel, err = g.Relation(Race_0.Name, race_D_name)
-	assert.NoError(t, err)
-	assert.Equal(t, game.RelationPeace, rel)
-
-	rel, err = g.Relation(Race_1.Name, race_D_name)
-	assert.NoError(t, err)
-	assert.Equal(t, game.RelationPeace, rel)
+	assert.Equal(t, game.RelationPeace, c.Relation(Race_0_idx, race_C_idx))
+	assert.Equal(t, game.RelationPeace, c.Relation(Race_1_idx, race_C_idx))
+	assert.Equal(t, game.RelationPeace, c.Relation(Race_0_idx, race_D_idx))
+	assert.Equal(t, game.RelationPeace, c.Relation(Race_1_idx, race_D_idx))
 
 	// Race_0
 	assert.NoError(t, c.CreateShips(Race_0_idx, Race_0_Gunship, R0_Planet_0_num, 10))
diff --git a/internal/controller/command.go b/internal/controller/command.go
index e3ffdc4..8915bf0 100644
--- a/internal/controller/command.go
+++ b/internal/controller/command.go
@@ -29,19 +29,6 @@ func (c Controller) GiveVotes(actor, acceptor string) error {
 	return nil
 }
 
-// FIXME: remove, not a command
-func (c Controller) Relation(actor, acceptor string) (game.Relation, error) {
-	r1, err := c.Cache.validActor(actor)
-	if err != nil {
-		return game.Relation(""), err
-	}
-	r2, err := c.Cache.validRace(acceptor)
-	if err != nil {
-		return game.Relation(""), err
-	}
-	return c.Cache.Relation(r1, r2), nil
-}
-
 func (c Controller) UpdateRelation(actor, acceptor string, rel game.Relation) error {
 	ri, err := c.Cache.validActor(actor)
 	if err != nil {
diff --git a/internal/controller/controller_export_test.go b/internal/controller/controller_export_test.go
index 383cdb6..c022e2a 100644
--- a/internal/controller/controller_export_test.go
+++ b/internal/controller/controller_export_test.go
@@ -129,3 +129,7 @@ func VotingWinners(calc []*VoteGroup, gameVotes float64) []int {
 func (c *Cache) CreateShipsUnsafe_T(ri int, classID uuid.UUID, planet uint, quantity uint) {
 	c.createShipsUnsafe(ri, classID, planet, quantity)
 }
+
+func (c *Cache) WipeRace(ri int) {
+	c.wipeRace(ri)
+}
diff --git a/internal/controller/race_test.go b/internal/controller/race_test.go
index 402b38d..d05c70d 100644
--- a/internal/controller/race_test.go
+++ b/internal/controller/race_test.go
@@ -4,6 +4,7 @@ import (
 	"testing"
 
 	e "github.com/iliadenisov/galaxy/internal/error"
+	"github.com/iliadenisov/galaxy/internal/model/game"
 	"github.com/stretchr/testify/assert"
 )
 
@@ -20,3 +21,23 @@ func TestGiveVotes(t *testing.T) {
 	assert.ErrorContains(t, g.GiveVotes("UnknownRace", Race_1.Name), e.GenericErrorText(e.ErrInputUnknownRace))
 	assert.ErrorContains(t, g.GiveVotes(Race_0.Name, "UnknownRace"), e.GenericErrorText(e.ErrInputUnknownRace))
 }
+
+func TestRelation(t *testing.T) {
+	c, g := newCache()
+
+	assert.NoError(t, g.UpdateRelation(Race_0.Name, Race_1.Name, game.RelationWar))
+	assert.NoError(t, g.UpdateRelation(Race_1.Name, Race_0.Name, game.RelationPeace))
+
+	assert.Equal(t, game.RelationWar, c.Relation(Race_0_idx, Race_1_idx))
+	assert.Equal(t, game.RelationPeace, c.Relation(Race_1_idx, Race_0_idx))
+
+	c.WipeRace(Race_1_idx)
+
+	assert.ErrorContains(t,
+		g.UpdateRelation(Race_0.Name, Race_1.Name, game.RelationWar),
+		e.GenericErrorText(e.ErrRaceExinct))
+
+	assert.ErrorContains(t,
+		g.UpdateRelation(Race_1.Name, Race_0.Name, game.RelationWar),
+		e.GenericErrorText(e.ErrRaceExinct))
+}
diff --git a/internal/game/cmd_war_peace_test.go b/internal/game/cmd_war_peace_test.go
index e587851..6032282 100644
--- a/internal/game/cmd_war_peace_test.go
+++ b/internal/game/cmd_war_peace_test.go
@@ -4,7 +4,6 @@ import (
 	"testing"
 
 	"github.com/iliadenisov/galaxy/internal/controller"
-	e "github.com/iliadenisov/galaxy/internal/error"
 
 	"github.com/iliadenisov/galaxy/internal/game"
 	mg "github.com/iliadenisov/galaxy/internal/model/game"
@@ -13,66 +12,46 @@ import (
 
 func TestDeclarePeaceAndWarSingle(t *testing.T) {
 	c(t, func(f func(*controller.Param), ctrl func() *controller.Controller) {
-		hostRace := "race_05"
-		opponentRace := "race_01"
+		hostRace := 5
+		opponentRace := 1
 
-		r, err := ctrl().Relation(hostRace, opponentRace)
-		assert.NoError(t, err)
-		assert.Equal(t, mg.RelationWar, r)
+		assert.Equal(t, mg.RelationWar, ctrl().Cache.Relation(5, 1))
 
-		r, err = ctrl().Relation(unknownRaceName, opponentRace) // TODO: test on dead race
-		assert.ErrorContains(t, err, e.GenericErrorText(e.ErrInputUnknownRace))
-		r, err = ctrl().Relation(hostRace, unknownRaceName) // TODO: test on dead race
-		assert.ErrorContains(t, err, e.GenericErrorText(e.ErrInputUnknownRace))
+		assert.NoError(t, game.DeclarePeace(f, raceNum(hostRace), raceNum(opponentRace)))
+		assert.Equal(t, mg.RelationPeace, ctrl().Cache.Relation(hostRace, opponentRace))
 
-		assert.NoError(t, game.DeclarePeace(f, hostRace, opponentRace))
-		r, err = ctrl().Relation(hostRace, opponentRace)
-		assert.NoError(t, err)
-		assert.Equal(t, mg.RelationPeace, r)
-
-		assert.NoError(t, game.DeclareWar(f, hostRace, opponentRace))
-		r, err = ctrl().Relation(hostRace, opponentRace)
-		assert.NoError(t, err)
-		assert.Equal(t, mg.RelationWar, r)
+		assert.NoError(t, game.DeclareWar(f, raceNum(hostRace), raceNum(opponentRace)))
+		assert.Equal(t, mg.RelationWar, ctrl().Cache.Relation(hostRace, opponentRace))
 	})
 }
 
 func TestDeclarePeaceAndWarAll(t *testing.T) {
 	c(t, func(f func(*controller.Param), ctrl func() *controller.Controller) {
-		hostRace := "race_07"
+		hostRace := 7
 
 		for i := range testRaceCount {
-			opponentRace := raceNum(i)
-			if opponentRace == hostRace {
+			if i == hostRace {
 				continue
 			}
-			r, err := ctrl().Relation(hostRace, opponentRace)
-			assert.NoError(t, err)
-			assert.Equal(t, mg.RelationWar, r)
+			assert.Equal(t, mg.RelationWar, ctrl().Cache.Relation(hostRace, i))
 		}
 
-		assert.NoError(t, game.DeclarePeace(f, hostRace, hostRace))
+		assert.NoError(t, game.DeclarePeace(f, raceNum(hostRace), raceNum(hostRace)))
 
 		for i := range testRaceCount {
-			opponentRace := raceNum(i)
-			if opponentRace == hostRace {
+			if i == hostRace {
 				continue
 			}
-			r, err := ctrl().Relation(hostRace, opponentRace)
-			assert.NoError(t, err)
-			assert.Equal(t, mg.RelationPeace, r)
+			assert.Equal(t, mg.RelationPeace, ctrl().Cache.Relation(hostRace, i))
 		}
 
-		assert.NoError(t, game.DeclareWar(f, hostRace, hostRace))
+		assert.NoError(t, game.DeclareWar(f, raceNum(hostRace), raceNum(hostRace)))
 
 		for i := range testRaceCount {
-			opponentRace := raceNum(i)
-			if opponentRace == hostRace {
+			if i == hostRace {
 				continue
 			}
-			r, err := ctrl().Relation(hostRace, opponentRace)
-			assert.NoError(t, err)
-			assert.Equal(t, mg.RelationWar, r)
+			assert.Equal(t, mg.RelationWar, ctrl().Cache.Relation(hostRace, i))
 		}
 	})
 }
diff --git a/internal/game/controller_test.go b/internal/game/controller_test.go
index 573e013..dd3e70e 100644
--- a/internal/game/controller_test.go
+++ b/internal/game/controller_test.go
@@ -29,7 +29,7 @@ func TestComposeGame(t *testing.T) {
 	})
 }
 
-func g(t *testing.T, f func(p func(*controller.Param), g func() *mg.Game)) {
+func g(t *testing.T, f func(func(*controller.Param), func() *mg.Game)) {
 	root, cleanup := util.CreateWorkDir(t)
 	defer cleanup()
 	races := make([]string, testRaceCount)
@@ -53,7 +53,7 @@ func g(t *testing.T, f func(p func(*controller.Param), g func() *mg.Game)) {
 	f(p, g)
 }
 
-func c(t *testing.T, f func(p func(*controller.Param), g func() *controller.Controller)) {
+func c(t *testing.T, f func(func(*controller.Param), func() *controller.Controller)) {
 	root, cleanup := util.CreateWorkDir(t)
 	defer cleanup()
 	races := make([]string, testRaceCount)
@@ -66,7 +66,7 @@ func c(t *testing.T, f func(p func(*controller.Param), g func() *controller.Cont
 		assert.FailNow(t, "c: GenerateGame", err)
 		return
 	}
-	ctl := func() *controller.Controller {
+	ctrl := func() *controller.Controller {
 		c, err := controller.NewController(p)
 		if err != nil {
 			assert.FailNow(t, "c: NewController", err)
@@ -80,5 +80,5 @@ func c(t *testing.T, f func(p func(*controller.Param), g func() *controller.Cont
 		c.Cache = controller.NewCache(g)
 		return c
 	}
-	f(p, ctl)
+	f(p, ctrl)
 }