diff --git a/hwe/b_troop.php b/hwe/b_troop.php
index 6cd8c10e..5260b3ac 100644
--- a/hwe/b_troop.php
+++ b/hwe/b_troop.php
@@ -12,7 +12,8 @@ $db = DB::db();
 
 increaseRefresh("부대편성", 1);
 
-$me = $db->queryFirstRow('SELECT no,nation,troop FROM general WHERE owner=%i', $userID);
+$me = $db->queryFirstRow('SELECT no,nation,troop,`officer_level`,permission,penalty FROM general WHERE owner=%i', $userID);
+$permission = checkSecretPermission($me, false);
 
 $troops = [];
 foreach ($db->query('SELECT troop_leader,name FROM troop WHERE nation = %i', $me['nation']) as $rawTroop) {
@@ -204,17 +205,37 @@ uasort($troops, function ($lhs, $rhs) {
 
         </table>
         <br>
-        <table width=1000 class='tb_layout bg0'>
-            <tr>
-                <td width=80 class='bg1'>부 대 명</td>
-                <td width=130><input type=text style=color:white;background-color:black; size=18 maxlength=18 id='nameplate'></td>
-                <?php if ($me['troop'] == 0) : ?>
-                    <td><input type=button id='btnCreateTroop' value='부 대 창 설'></td>
-                <?php else : ?>
-                    <td><input type=button id='btnChangeTroopName' value='부 대 변 경'></td>
-                <?php endif; ?>
-            </tr>
-        </table>
+        <div class="row">
+            <?php if($me['troop'] == 0): ?>
+                <div class="col-6"><?php /*TODO: 모바일 */ ?>
+                    <div class="row gx-0 bg0">
+                        <div class="bg1 col d-grid"><span class="align-self-center center">부대명</span></div>
+                        <div class="col d-grid"><input type=text style=color:white;background-color:black; size=18 maxlength=18 id='newTroopName'></div>
+                        <div class="col d-grid"><button type='button' id="btnCreateTroop" class='btn btn-sm btn-secondary'>부대 창설</button></div>
+                    </div>
+                </div>
+            <?php endif; ?>
+            <?php if($troops && ($me['troop'] == $me['no'] || $permission == 4)): ?>
+                <div class="col-6">
+                    <div class="row gx-0 bg0">
+                        <div class="bg1 col d-grid"><span class="align-self-center center">부대명</span></div>
+                        <div class="col d-grid"><select class="form-select" id="changeNameTroopID">
+                            <?php if($permission != 4): ?>
+                                <option value="<?=$me['troop']?>"><?=$troops[$me['troop']]['name']?></option>
+                            <?php else: ?>
+                                <?php foreach ($troops as $troopNo => $troop): ?>
+                                    <option value="<?=$troopNo?>"><?=$troop['name']?></option>
+                                <?php endforeach; ?>
+                            <?php endif; ?>
+                        </select>
+                        </div>
+                        <div class="col d-grid"><input type=text style=color:white;background-color:black; size=18 maxlength=18 id='changeTroopName'></div>
+                        <div class="col d-grid"><button type='button' id="btnChangeTroopName" class='btn btn-sm btn-secondary'>이름 변경</button></div>
+                    </div>
+                </div>
+            <?php endif; ?>
+        </div>
+
 
         <table width=1000 class='tb_layout bg0'>
             <tr>
diff --git a/hwe/j_troop.php b/hwe/j_troop.php
index 90152801..007912ba 100644
--- a/hwe/j_troop.php
+++ b/hwe/j_troop.php
@@ -53,32 +53,6 @@ if($action == '부대창설'){
     ]);
 }
 
-if($action == '부대변경'){
-    $name = StringUtil::neutralize($name);
-    if(!$name){
-        Json::die([
-            'result'=>false,
-            'reason'=>'부대 이름이 없습니다.'
-        ]);
-    }
-
-    $db->update('troop', [
-        'name'=>$name
-    ], 'troop_leader=%i',$generalID);
-
-    if($db->affectedRows() == 0){
-        Json::die([
-            'result'=>false,
-            'reason'=>'부대장이 아닙니다.'
-        ]);
-    }
-
-    Json::die([
-        'result'=>true,
-        'reason'=>'success'
-    ]);
-}
-
 if($action == '부대추방'){
     if (!$gen){
         Json::die([
diff --git a/hwe/sammo/API/Nation/SetTroopName.php b/hwe/sammo/API/Nation/SetTroopName.php
new file mode 100644
index 00000000..b8689d6f
--- /dev/null
+++ b/hwe/sammo/API/Nation/SetTroopName.php
@@ -0,0 +1,65 @@
+<?php
+
+namespace sammo\API\Nation;
+
+use sammo\Session;
+use DateTimeInterface;
+use sammo\DB;
+use sammo\StringUtil;
+use sammo\Validator;
+
+use function sammo\checkSecretPermission;
+
+class SetTroopName extends \sammo\BaseAPI
+{
+  public function validateArgs(): ?string
+  {
+    $v = new Validator($this->args);
+    $v->rule('required', [
+      'troopID',
+      'troopName',
+    ])
+      ->rule('stringWidthBetween', 'troopName', 1, 18)
+      ->rule('integer', 'troopID');
+
+    if (!$v->validate()) {
+      return $v->errorStr();
+    }
+    return null;
+  }
+
+  public function getRequiredSessionMode(): int
+  {
+    return static::REQ_GAME_LOGIN | static::REQ_READ_ONLY;
+  }
+
+  public function launch(Session $session, ?DateTimeInterface $modifiedSince, ?string $reqEtag)
+  {
+    $userID = $session->userID;
+    $db = DB::db();
+    $me = $db->queryFirstRow('SELECT `no`,nation,`officer_level`,permission,penalty FROM general WHERE `owner`=%i', $userID);
+    $permission = checkSecretPermission($me, false);
+    $troopID = $this->args['troopID'];
+
+    $generalID = $me['no'];
+    if($generalID != $troopID && $permission < 4){
+      return "권한이 부족합니다.";
+    }
+
+    $troopName = StringUtil::neutralize($this->args['troopName']);
+    if(!$troopName){
+      return '부대 이름이 없습니다.';
+    }
+
+    $nationID = $me['nation'];
+    $db->update('troop', [
+      'name'=>$troopName
+    ], 'troop_leader=%i AND `nation`=%i',$troopID, $nationID);
+
+    if($db->affectedRows() == 0){
+      return '부대가 없습니다.';
+    }
+
+    return null;
+  }
+}
diff --git a/hwe/ts/SammoAPI.ts b/hwe/ts/SammoAPI.ts
index 95d7a654..b09d2ea5 100644
--- a/hwe/ts/SammoAPI.ts
+++ b/hwe/ts/SammoAPI.ts
@@ -226,6 +226,10 @@ const apiRealPath = {
       },
       GetGeneralLogResponse
     >,
+    SetTroopName: PATCH as APICallT<{
+      troopID: number;
+      troopName: string;
+    }>,
   },
   Vote: {
     AddComment: POST as APICallT<{
diff --git a/hwe/ts/troop.ts b/hwe/ts/troop.ts
index 2ccd6f54..74542a32 100644
--- a/hwe/ts/troop.ts
+++ b/hwe/ts/troop.ts
@@ -3,6 +3,8 @@ import "@scss/troop.scss";
 import { errUnknown } from "@/common_legacy";
 import { launchTroopPlugin } from "@/extPluginTroop";
 import jQuery from "jquery";
+import { SammoAPI } from "./SammoAPI";
+import { isString } from "lodash";
 
 jQuery(function($){
     //btnJoinTroop, btnLeaveTroop, btnKickTroop, btnCreateTroop, btnChangeTroopName
@@ -35,7 +37,7 @@ jQuery(function($){
             dataType:'json',
             data:{
                 action:'부대창설',
-                name:$('#nameplate').val()
+                name:$('#newTroopName').val()
             }
         }).then(function(data){
             console.log(data);
@@ -50,24 +52,24 @@ jQuery(function($){
         return false;
     });
 
-    $('#btnChangeTroopName').click(function(){
-        $.post({
-            url:'j_troop.php',
-            dataType:'json',
-            data:{
-                action:'부대변경',
-                name:$('#nameplate').val()
-            }
-        }).then(function(data){
-            console.log(data);
-            if(!data.result){
-                alert(data.reason);
-                location.reload();
-            }
-
+    $('#btnChangeTroopName').on('click', async ()=>{
+        try{
+            await SammoAPI.Nation.SetTroopName({
+                troopID: parseInt($('#changeNameTroopID').val() as string),
+                troopName: $('#changeTroopName').val() as string,
+            });
             location.reload();
-
-        }, errUnknown);
+        }
+        catch(e){
+            console.error(e);
+            if(isString(e)){
+                alert(e);
+            }
+            else{
+                errUnknown();
+            }
+            location.reload();
+        }
         return false;
     });