diff --git a/src/events/intro/customizeSlaveTrade/customizeSlaveTrade.js b/src/events/intro/customizeSlaveTrade/customizeSlaveTrade.js
index 6b25d1ae11b73688b02edb90a77ee54ade381982..5a5e2ff6171e6a031074b5bec3f733408f76e733 100644
--- a/src/events/intro/customizeSlaveTrade/customizeSlaveTrade.js
+++ b/src/events/intro/customizeSlaveTrade/customizeSlaveTrade.js
@@ -18,6 +18,7 @@ App.UI.CustomSlaveTrade = function() {
 		let div;
 		let array;
 		let list;
+		const nationalitiesCheck = App.UI.nationalitiesCheck();
 
 		if (hashSum(V.nationalities) < 1) {
 			App.UI.DOM.appendNewElement("div", p, `You cannot be a slaveowner without a slave trade. Please add nationalities to continue.`, "note");
@@ -35,7 +36,7 @@ App.UI.CustomSlaveTrade = function() {
 		}
 		frag.append(p);
 
-		App.UI.DOM.appendNewElement("p", frag, App.UI.nationalitiesCheck());
+		App.UI.DOM.appendNewElement("p", frag, App.UI.nationalitiesDisplay());
 
 		p = document.createElement("p");
 
@@ -126,7 +127,7 @@ App.UI.CustomSlaveTrade = function() {
 					),
 					"plusButton"
 				);
-				if (V.nationalitiesCheck[nation]) {
+				if (nationalitiesCheck[nation]) {
 					App.UI.DOM.appendNewElement(
 						"span",
 						li,
@@ -230,7 +231,7 @@ App.UI.CustomSlaveTrade = function() {
 					"plusButton"
 				);
 
-				if (V.nationalitiesCheck[nation]) {
+				if (nationalitiesCheck[nation]) {
 					App.UI.DOM.appendNewElement(
 						"span",
 						li,
@@ -381,17 +382,17 @@ App.UI.CustomSlaveTrade = function() {
 	}
 };
 
-App.UI.nationalitiesCheck = function() {
+App.UI.nationalitiesDisplay = function() {
 	const p = document.createElement("p");
 
 	/* Generates cloned array of V.nationalities, removing duplicates and then sorting */
-	V.nationalitiesCheck = Object.assign({}, V.nationalities);
+	const nationalitiesCheck = App.UI.nationalitiesCheck();
 
-	/* Prints distribution of V.nationalities, using V.nationalitiesCheck to render array */
+	/* Prints distribution of V.nationalities, using nationalitiesCheck to render array */
 	let percentPerPoint = 100.0 / hashSum(V.nationalities);
-	let len = Object.keys(V.nationalitiesCheck).length;
+	let len = Object.keys(nationalitiesCheck).length;
 	let j = 0;
-	for (const nation in V.nationalitiesCheck) {
+	for (const nation in nationalitiesCheck) {
 		const span = document.createElement("span");
 		span.append(`${nation} `);
 		App.UI.DOM.appendNewElement("span", span, (V.nationalities[nation] * percentPerPoint).toFixed(2), "orange");
@@ -403,3 +404,11 @@ App.UI.nationalitiesCheck = function() {
 	}
 	return p;
 };
+
+App.UI.nationalitiesCheck = function() {
+	return Object.assign(
+		{
+			// Player can add custom nations here.
+		},
+		V.nationalities);
+};
diff --git a/src/events/intro/initNationalities.js b/src/events/intro/initNationalities.js
index b6a93a5c228d88da1f984d310430313884930610..4ec5a805b35db22e4de6316c3469664797a33450 100644
--- a/src/events/intro/initNationalities.js
+++ b/src/events/intro/initNationalities.js
@@ -544,8 +544,6 @@ App.Intro.initNationalities = function() {
 
 	/* Nationalities Setup */
 
-	delete V.nationalitiesCheck; /* Removes unique nationalities array to avoid var bloat */
-
 	if (!V.customVariety) {
 		/* If non-custom variety, empties or defines $nationalities */
 		V.nationalities = {};
diff --git a/src/events/intro/introSummary.tw b/src/events/intro/introSummary.tw
index 09e4c1bb8a28c22a870f8fefba29307560353ed5..b687c9ffb8db6b3c90e2b52542ae774b74554bda 100644
--- a/src/events/intro/introSummary.tw
+++ b/src/events/intro/introSummary.tw
@@ -241,7 +241,7 @@ You may review your settings before clicking "Continue" to begin.<br>
 
 		<<run _options.addOption("").addCustomElement(`
 			<hr style="margin:0">
-			<App.UI.nationalitiesCheck().outerHTML>
+			<<includeDOM App.UI.nationalitiesDisplay()>>
 			<br style="clear:both"><hr style="margin:0">
 		`)>>
 	<</if>> /* closes $customVariety is defined */