Why does the code not print a flag when asked to?

There are a few issues in the code:

1. The drawFlag function has the flag function declared inside it. So it is never called;
2. The draw function should have the indentation with less than 4 spaces;
3. The draw function calls the flag function without any arguments;
4. There's a missing while True: to keep the turtle drawing the next flag if asked yes;

I've fixed those issues and also positioned the flags to not overlap each other when asked to draw all of them.

This is the result:

#####################################################
# Global Variables and Constants
#####################################################
choice = ""
length = 100
#####################################################
# Imports
#####################################################
import turtle
turtle = turtle.Turtle()
#####################################################
# Subprograms
#####################################################
def displayMenu():
    print("Please choose one of three flags - A German, Armenian, Netherlands flag, or all the flags. ")
def makeRectangle():
   turtle.begin_fill()
   for _ in range(4):
       if _% 2 == 0:# drawing length
           turtle.forward(length * 5)          # Forward turtle by l00 units
           turtle.right(90)           # Turn turtle by 90 degree
       else:         # drawing width
           turtle.forward(length)          # Forward turtle by 400 units
           turtle.right(90)          # Turn turtle by 90 degree
   turtle.end_fill()



def drawFlag(colourA, colourB, colourC):
    # turtle.begin_fill()
    turtle.home()
    turtle.speed(5)
    length = 50
    turtle.penup()
    turtle.right(180)
    turtle.forward(300)
    turtle.right(90)
    turtle.forward(300)
    turtle.right(90)
    turtle.pendown()
    flag(colourA, colourB, colourC)

def flag(colourA, colourB, colourC):
    turtle.color(colourA)
    turtle.fillcolor(colourA)
    makeRectangle()
    turtle.right(90)
    turtle.forward(length)
    turtle.left(90)
    turtle.color(colourB)
    turtle.fillcolor(colourB)
    makeRectangle()
    turtle.right(90)
    turtle.forward(length)
    turtle.left(90)
    turtle.color(colourC)
    turtle.fillcolor(colourC)
    makeRectangle()

def makeAllFlags():
    turtle.penup()
    turtle.right(180)
    turtle.forward(300)
    turtle.right(90)
    turtle.forward(300)
    turtle.right(90)
    turtle.pendown()
    colourA = "#000000"
    colourB = "#FF0000"
    colourC = "#FFFF00"
    flag(colourA, colourB, colourC)
    turtle.penup()
    turtle.home()
    turtle.forward(210)
    turtle.left(90)
    turtle.forward(300)
    turtle.right(90)
    turtle.pendown()
    colourA = ("#FF0000")
    colourB = ("#00008B")
    colourC = ("#FFBF00")
    flag(colourA, colourB, colourC)
    turtle.penup()
    turtle.home()
    turtle.forward(210)
    turtle.right(90)
    turtle.forward(10)
    turtle.left(90)
    colourA = "#009900"
    colourB = "#CCCC00"
    colourC = "#ADD8E6"
    turtle.pendown()
    flag(colourA, colourB, colourC)
    turtle.penup()
    turtle.home()
    turtle.right(180)
    turtle.forward(300)
    turtle.left(90)
    turtle.forward(10)
    turtle.left(90)
    colourA = "#990000"
    colourB = "#FFFFFF"
    colourC = "#004C99"
    flag(colourA, colourB, colourC)


#####################################################
# Main Program
####################################################
welcome = "Welcome to the FLAG printer!\n"        #welcome message

print(welcome)
displayMenu()

while True:
    userChoice = str(input("Which flag do you want printed: (pls say 'each' for all of them) "))     #asks which flag they want printed
    print(userChoice)
    countryList = ["german", "germany", "armenia", "armenian", "netherlands", "dutch", "gabon", "gabonese", "each"]


    if userChoice.lower() not in countryList:         #validates to make sure they have inputed a correct flag
        msg = "Please choose one of the appropriate countries listed above"                        #validates to make sure they have inputed a correct flag
        print(userChoice)
    elif userChoice == "germany" or userChoice == "german":                     #if decision is german
        msg = "Printing German Flag....."
        drawFlag("#000000", "#FF0000", "#FFFF00")
    elif userChoice == "armenia" or userChoice == "armenian":                   # if decision is armenian
        msg = "Printing Armenian Flag....."
        drawFlag("#FF0000", "#00008B", "#FFBF00")
    elif userChoice == "netherlands" or userChoice == "dutch":                  # if decision is dutch
        msg = ("Printing the Dutch Flag.....")
        drawFlag("#990000", "#FFFFFF", "#004C99")
    elif userChoice == "gabon" or userChoice == "gabonese":
        msg = ("Printing Gabonese Flag.....")                      # if the decision is gabon
        drawFlag("#009900", "#CCCC00", "#ADD8E6")
    elif userChoice == "each":
        msg = ("Printing all four flags.....")
        makeAllFlags()
    print(msg)

    question = str(input("Do you want to print a second flag? "))    #if the user wants another flag
    question.lower()
    if question == "yes":
        turtle.clear()                                 #clears the canvas ready for a new flag to be drawn
        turtle.home()
        print(userChoice)
    elif question == "no":                                            #if user says no and wants to quit the program
        turtle.clear
        turtle.home()
        print("Thank you - Goodbye!")
        exit()